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• How to Choose a Good Drill Bit? 2023-09-01

  Twist drill bits are generally made of high-speed steel for Fried Dough Twists drills; A deep hole drill usually refers to a tool that processes holes with a depth to aperture ratio greater than 6. Commonly used include gun drills, BTA deep hole drills, jet drills, DF deep hole drills, etc; The reaming drill has 3-4 teeth, which are used to expand existing holes and improve machining accuracy and smoothness. Spot facers have a large number of cutting teeth, which are used to process the hole end into the desired shape using the forming method. They are used to process various countersunk head screws' countersunk head holes or to flatten the outer end face of the holes. Drilling is used for drilling holes of shaft workpieces. It is essentially a combination of Fried Dough Twists drills with small spiral angles and spot drills, so it is also called composite drills. The center of the hollow drill rod is a hollow drill bit, mainly used for drilling and coring. Considering the dimensional accuracy requirements of drilling processing, generally speaking, the smaller the processed aperture, the smaller the tolerance. Therefore, it is generally used for hole machining with low precision requirements, or for completing hole precision machining by replacing boring blades. Pay attention to the toughness of the drill bit, which is also a guarantee that some manufacturers can provide. During this process, manufacturers can achieve good results through a series of good material ratios and production processes. Considering the stability of the machining machine tool, which is crucial for the safe service life and drilling accuracy of the drill bit, it is necessary to carefully inspect the working status of the machine tool spindle, fixture, and accessories. In addition, the stability of the drill bit itself should also be considered. For

• Reasons Why Group Drills Are Better Than Other Drills 2023-08-27

  60% of the axial resistance of standard Fried Dough Twists drills comes from the horizontal edge, because the front angle of the horizontal edge is about -60 °. The "group drilling" removes 80%~90% of the horizontal edge of the Fried Dough Twists drill, and forms two internal edges. The front angle of the internal edge increases from -60 ° to 0 °~-10 °, thus reducing the axial resistance by about 50%, and making the feeding feel particularly light. The group drill sharpens the crescent groove on the outer straight edge, resulting in finer chips and smoother chip removal. The circular reinforcement generated during drilling is conducive to the centering of the drill bit, ensuring that the drilling is "smooth" and "round". Its drilling torque is reduced by about 30%, so it can be drilled with a larger feed rate. The outer edge has a sharp angle of 135 °, the inner edge has a sharp angle of 120 °, and the drill tip has a height of 0.06d, making it have excellent drilling performance. Due to its low cutting resistance, accurate and stable centering, it is particularly suitable for use on electric hand drills. Fried Dough Twists drill is a commonly used drilling tool for machining. Although the structure is simple, it is not an easy task to truly sharpen it. The key lies in mastering the methods and techniques of sharpening, and once mastered, the problem will be easily solved. Let me introduce the hand sharpening skills of Fried Dough Twists drills. The top angle of Fried Dough Twists drill is generally 118 °, which can also be regarded as 120 °. If you want to know more about our products, please visit our website

• What Are the Steps for Drilling with a Tile Drill Bit? 2023-08-17

  1. Firstly, check if there is any hollowing in the ceramic tiles. Remember to select the parts without hollowing during drilling, otherwise the tiles will crack. 2. Then apply some sealing glue to the location where you need to drill holes, which serves both to locate and prevent the tiles from cracking. 3. Afterwards, use a cement nail to chisel a hole in the desired hole to prevent the drill bit from slipping during drilling. 4. During the drilling process, it is important to pay attention to the mode of the electric hammer, which should be adjusted to the flat drilling mode. At first, when drilling, gently press the switch and slowly drill the hole. If you want to know more about our products, please visit our website https://www.china-drill-bit.com. Hope to cooperate with you.

• Steps for Drilling with a Tile Drill Bit 2023-08-16

  ① Check the selected position: Check if there are any hollows in the tiles, and select areas without hollows for drilling. ② Before drilling, apply sealing glue to the ceramic tiles, mainly to locate and prevent cracking of the tiles. ③ Use a cement nail to chisel a small spot on the tile surface that needs to be drilled to prevent the drill bit from slipping on the tile surface. ④ During the ceramic tile drilling stage, set the electric hammer to the flat drilling mode. When starting to drill holes on the ceramic tile surface, gently press the switch and slow down until the ceramic tile is penetrated. ⑤ In the cement wall stage, drill holes by adjusting the electric hammer to the hammer drilling mode. Next, drill the cement wall and press the switch to the bottom to accelerate the penetration. Following the above steps can ensure that the tiles are not broken. If you want to know more about our products, please visit our website https://www.china-drill-bit.com. Hope to cooperate with you.

• How to Avoid tile Breakage When Using a Tile Drill Bit to Punch Holes in Tiles? 2023-08-13

  When using an electric hammer to drill holes in ceramic tile walls, we can try two relatively simple methods to avoid tile damage. One method is to first perform a simple treatment on the surface of the ceramic tiles to prevent cracking. Another method is to use a specialized ceramic tile drilling tool to drill holes, and then use an impact drill bit to expand the hole and drill deep. First, remove a part of the surface of the ceramic tile at the drilling position, so that after processing, the drill bit will not directly come into contact with the surface of the ceramic tile. Firstly, make a cross mark on the position where you want to make a hole, and then gently tap the ceramic tile on this marking point with a cement steel nail. At this point, two key points need to be noted. The first point is that the steel nail tip should not be too perpendicular to the surface of the ceramic tile. The correct way is to slant the steel nail towards the ceramic tile, forming a certain angle between the two, which is conducive to breaking the surface of the ceramic tile. The second key point is that the force of striking the steel nail should not be too strong. If the ceramic tiles are forcefully struck before they are broken, it is easy to cause porcelain to collapse on the surface of the tiles. At that time, what is broken is not a single point, but an irregular sheet shape. Next, use a steel nail to continue tapping around the marked point until the porcelain surface at this position gradually falls off and forms a smal

• Why Is It Harder to Punch Holes in Ceramic Tiles than on Walls? 2023-08-11

  1. The most important thing is that ceramic tiles are difficult to locate. If using an impact drill or a lightweight electric hammer with a continuously variable speed, it is much easier to wear out the surface glaze or polishing layer at a lower speed. If it is stone, especially dry hanging, a glass drill bit (hollow alloy drill bit) must be used to pierce through the stone before continuing to use an impact drill or electric hammer for operation. 2. Ceramic tiles cannot be directly punched with an electric hammer or impact drill, and must be done in two steps. ① Use an electric drill (usually with a flat drill mode for impact drills, and there are also good electric hammers, which must be operated in the flat drill mode) on ceramic tiles, and clip in a dedicated glass/marble hole opener to open the hole.It is necessary to continuously cool the drill bit with water. It is a common method to make a hole in the cap of a mineral water bottle, otherwise it will be difficult to drill and the drill bit will wear out quickly. At first, due to the difficulty in positioning the smooth tile drill bit, a shallow crescent groove can be slowly opened at a 45 degree angle for positioning. ② After drilling through the ceramic tiles, using this drill bit is obviously inefficient, and then using an electric hammer or impact drill.The reason for doing so is: (1) Ceramic tiles are relatively brittle, and the working principle of im

• How to Use Tile Drill Bits? 2023-08-10

  We punch holes in ceramic tiles, not arbitrarily. We first confirm the location where we need to drill holes, but we also need to avoid corresponding pipelines, such as water pipes and electrical conduits. So, our confirmation of the drilling position is to avoid the water pipes and electrical conduits to confirm the required position. We can confirm the specific location as follows. ① Avoid water pipes. After the renovation of the waterways in home decoration, there is a particularly common rule that the water pipes are installed vertically on the wall. That is to say, the water pipes are arranged in an up and down direction, so we find the lowest water point and avoid the vertical up and down direction, which can basically avoid the water pipes. Of course, if we have information on hidden water pipes, we can also confirm based on our hidden images. ② Avoid wiring ducts. Another location we need to avoid when drilling holes in wall tiles is the hidden electrical conduit inside the wall. There are also certain rules for the arrangement of electrical conduits on the wall in home decoration. My personal opinion is to avoid both the vertical and horizontal directions of the electrical conduits. Here we are based on the switches or sockets installed on our walls, so when drilling holes, we should avoid the vertical and horizontal directions of the switches. The position to avoid should generally exceed 20 centimeters, which is more secure. If you want to know more about our products

• How to Choose a Diamond Saw Blade? 2023-08-05

  The main basis for selecting diamond saw blades is based on the customer's cutting purpose. Firstly, according to the different cutting objects, Shanghai Ningjing saw blades are divided into: granite special saw blades; Special cutting saw blade for marble (microcrystalline stone); Quartz stone special cutting saw blade; Special cutting saw blade for sandstone; Special cutting saw blades for roads (reinforced concrete); Ceramic specialized cutting saw blade; Glass specialized cutting saw blades, etc. Similarly, when cutting granite, different granite saw blades should be selected based on the hardness and origin of the granite; The same applies to other types of diamond saw blades. Secondly, according to the different cutting environments (cutting machines), the Shanghai Condensation Saw Blade can be divided into two types: dry cutting and wet cutting, which means the problem of the saw machine with or without water. How to choose the thickness of diamond saw blades? In principle, the thicker the thickness of the diamond saw blade, the greater the loss of the generated board, especially for those expensive boards. The thinner the saw blade, the smaller the loss. So when choosing the thickness of the saw blade, try to be as thin as possible. However, the thinner the saw blade, the higher the requirements for its rigidity and processing technology, and the higher the cost. Therefore, the price of the saw blade will also increase accordingly. So customers are purchasing saw blades of corresponding thickness based on their actual situation to achieve the highest cost-effectiveness.

• Classification of Diamond Circular Saw Blades 2023-08-04

  Diamond circular saw blade is currently the most commonly used sawing tool in China's stone industry, which is generally circular in shape. It uses methods such as powder metallurgy or electroplating to embed diamond particles around the substrate. Utilizing the high strength and hardness of diamond particles to shear and crush other materials for cutting purposes. There are many types of diamond circular saw blades and their classification is also very complex. There are usually several classification methods: 1. Classification by manufacturing process: (1) Sintered diamond saw blades: divided into two types: cold press sintering and hot press sintering. (2) Welding diamond saw blade: there are two kinds of brazing and Laser beam welding. Brazing is to weld the cutter head and the substrate together through high temperature melting medium, such as high-frequency induction brazing saw blade, vacuum brazing saw blade, etc; Laser welding uses high temperature laser beam to melt the cutting head and the contact edge of the substrate to form metallurgical bonding. (3) Electroplated diamond saw blade: It is the process of attaching the blade powder to the substrate through electroplating. However, due to severe pollution, the country is gradually abolishing this electroplating method. 2. Classification by processing object: Marble cutting saw blade, granite c

• How to Use a Diamond Hole Saw? 2023-08-03

  Preparation of diamond drill bit before drilling 1. Check the previous diamond drill bit for any damage, tooth loss, etc., and ensure that the bottom of the well is clean and free of debris. 2. Carefully handle the diamond drill bit and place it on a rubber pad or wooden board. It is prohibited to place diamond drill bits directly on iron plates. 3. Check if the cutting teeth of the diamond drill bit are damaged, if there are foreign objects inside the diamond drill bit, and if there are O-ring seals in the nozzle hole. Install the nozzle as needed. Diamond drill bit buckle 1. Clean the male or female threads of the diamond drill bit and apply thread oil. 2. Clamp the shackle onto the diamond drill bit and lower the drill string to make contact with the male or female buckle. 3. Place the diamond drill bit and shackle together into the rotary table bushing, and then tighten the screw thread according to the recommended torque value. Drilling down 1. Lower the diamond drill bit slowly, especially through the rotary table, blowout preventer, and casing hanger, to protect the cutting teeth. 2. Pay attention to the blocked well section that occurred during

• Rock Breaking Mechanism of Diamond Hole Saw 2023-08-02

  The rock breaking action of diamond drill bits is completed by diamond particles. To understand the rock breaking effect of a drill bit, it is necessary to understand the rock breaking effect of a single diamond. In hard formations, a single diamond under drilling pressure puts the rock in an extremely high stress state (about 4200-5700MPa, some data suggest it can reach 6300MPa), causing the rock to undergo a lithological transformation from brittleness to plasticity. A single diamond enters the formation and, under the action of torque, cuts and breaks the rock, with a cutting depth basically equal to the depth of diamond particles. This process is known as the plowing effect of a diamond drill bit, just like the plowing of the land. In some brittle rocks (such as sandstone, limestone, etc.), the diamond particles on the drill bit, under the simultaneous action of drilling pressure and torque, break the volume of the rock much larger than the volume of the diamond particles' ingestion and rotation. When the pressure is not high, small grooves can only be formed along the direction of diamond movement. Increasing the pressure will cause the deep part of the small grooves and the rocks on both sides to break, exceeding the cross-sectional size of diamond particles. The rock breaking effect of diamond drill bits is not only related to lithology and external factors that affect lithology (such as pressure, temperature, formation fluid properties, etc.), but also to the size of drilling pressure. It, like a roller drill bit, has three ways of breaking rock: surface crushing, fatigue crushing, and volume crushing. Only when the diamond particles have sufficient specific pressure to penetrate the formation rock, causing the rock to undergo volume crushing,

• Advantages of Diamond Hole Saw Drill Bits 2023-08-01

  A drill bit that uses diamond as the cutting edge is called a diamond drill bit. This drill bit is an integrated drill bit, with no moving parts and a relatively simple structure. It has high strength, high wear resistance, and impact resistance, making it one of the three major new drilling technologies in the world in the 1980s. On site use has proven that diamond drill bits have advantages such as fast speed, more footage, long service life, stable operation, fewer downhole accidents, and good wellbore quality when drilling in soft to medium hard formations. Diamond drill bits not only have a long service life, but can also be reused. The diamond drill bits that are returned to the factory for repair have similar usage effects as factory made diamond drill bits, which can greatly save drilling costs. So, what are the advantages of diamond hole saw drill bits? 1. The force balance design ensures that the drill bit has good directionality and is suitable for use with downhole motors in directional drilling, with minimal radial vibration; 2. The reasonable arrangement of patent PDC composite sheets with different structures at different positions of the drill bit makes the drill bit highly aggressive and anti abrasive; 3. Strong aggressive design allows the drill bit to achieve high mechanical drilling speed; 4. The application of dynamic flow field simulation technology in hydraulic design optimizes the bottom hole flow field, which is beneficial for improving chip removal speed and mud prevention.

• Do You Know How to Use A Glass Hole Saw? 2023-07-31

  A glass hole saw drill bit is a machine equipment used for professional drilling of glass. Glass drill bits are different from ordinary drill bits. There are many types of drill bits. Glass drill bits are highly specialized and have high hardness, making them suitable for drilling glass. How should a glass drill bit be used? Glass drill bits, like ordinary drill bits, require the use of a drilling machine to operate. When using glass drill bits, it is necessary to choose according to different specifications, as there are many specifications for glass drill bits. Different sizes of glass drilling require the use of different glass drill bits. Let's take a look at how to use a glass drill bit. 1. The drill bit should be packed in a specially designed packaging box to avoid vibration and collision with each other. When using, remove the drill bit from the packaging box and immediately install it into the spring clamp of the spindle or the tool library for automatic replacement of the drill bit. Immediately return to the packaging box after use. 3. To measure the diameter of the drill bit, non-contact measuring instruments such as a tool microscope should be used to avoid damage caused by contact between the cutting edge and the mechanical measuring instrument. 4. Some CNC drilling machines use positioning rings, and some CNC drilling machines do not use positioning rings. If a positioning ring is used, the depth positioning during installation must be accurate. If a positioning ring is not used, the elongation of the drill bit installed on the spindle should be adjusted uniformly. Multi spindle dr

• Do You Know How to Use Saw Blades? 2023-07-30

  1. When working, the workpiece should be fixed and the profile should be positioned in accordance with the cutting direction to avoid abnormal cutting. Do not apply side pressure or curve cutting, and the cutting should be stable to avoid the blade from impacting the workpiece, which may cause damage to the saw blade or the workpiece flying out, leading to accidents. 2. When abnormal sound and vibration, rough cutting surface, or odor are found during work, the operation must be immediately terminated, inspected in a timely manner, and faults eliminated to avoid accidents. 3. When starting and stopping cutting, do not feed too fast to avoid tooth breakage and damage. 4. If cutting aluminum alloys or other metals, special cooling and lubricating fluids should be used to prevent overheating of the saw blade, tooth paste, and other damage that may affect the cutting quality. 5. Ensure that the equipment's chip removal tank and slag suction device are unobstructed to prevent slag accumulation and agglomeration, which may affect production and safety. 6. When dry cutting, please do not cut continuously for a long time to avoid affecting the service life and cutting effect of the saw blade; Wet cutting should be done by adding water to prevent electric leakage. If you want to know more about our products, please visit our website https://www.china-drill-bit.com

• Do You Know the Installation Requirements of Saw Blades? 2023-07-28

  1. The equipment is in good condition, with no deformation or radial jump of the main shaft, and is firmly installed and fixed without vibration. 2. Check if the saw blade is damaged, if the tooth shape is complete, if the saw plate is flat and smooth, and if there are any other abnormal phenomena to ensure safe use. 3. During assembly, ensure that the arrow direction of the saw blade is consistent with the rotation direction of the equipment spindle. 4. When installing the saw blade, it is necessary to maintain the cleanliness of the shaft center, chuck, and flange plate. The inner diameter of the flange plate should be consistent with the inner diameter of the saw blade, ensuring that the flange plate is tightly combined with the saw blade. Install the positioning pin and tighten the nut. The size of the flange should be appropriate, and the outer diameter should not be less than 1/3 of the diameter of the saw blade. Before starting the equipment, if it is safe to do so, a single person should operate the equipment and jog it to check for correct rotation, vibration, and idle for a few minutes after the saw blade is installed. If there is no slipping, swinging, or jumping, it should work normally. If you want to know more about our products, please visit our website https://www.china-drill-bit.com. Hope to cooperate with you.

• Do You Know How to Use a Hole Saw Drill Bit? 2023-07-27

  Openers have different apertures and specifications based on different sizes of circles, and are divided into standard type and deep load type based on the depth of the hole. They are installed on electric tools such as hand drills, impact drills, and rocker drills for use. There are two common types of hole openers: fixed diameter and variable diameter (aircraft type), and variable diameter hole openers are often used for indoor and outdoor decoration. Fixed diameter hole opener, also available in regular, impact, and water-cooled versions, of which the water-cooled version is commonly used for wall hole opening, with high work efficiency and beautiful opening. The hole opener (cutter) is installed on a regular electric drill and can conveniently cut circular, square, triangular, straight, and curved holes on any surface such as the plane and sphere of various plates such as copper, iron, stainless steel, and organic glass. According to material division, the hole opener is divided into bimetallic hole opener, diamond hole opener, glass hole opener, woodworking hole opener, etc. Glass hole saw A glass hole saw is a tool used for making holes in glass. Additionally, a glass circle hole saw drill bit can be used to polish hand beads, making them very round. When using a glass hole opener, first draw a line at the position where the hole needs to be punched, and then use a hand electric drill with special glass hole saw bits to drill. But be sure to have water to cool the drill bit, otherwise the drill bit will burn off in one go.

• Classification of Hole Saw Drill Bits 2023-07-26

  The hole saw is installed on a regular electric drill and can conveniently cut circular, square, triangular, straight, and curved holes on any surface such as the plane and sphere of various plates such as copper, iron, stainless steel, and organic glass. Flexible, convenient, safe, and versatile. Generally speaking, woodworking hole saws are installed on hand electric drills or bench drills. A hand electric drill is relatively affordable, but it requires advanced technology to grasp the opening angle. Table drills are relatively expensive, and the holes drilled are relatively standard. A bimetallic hole saw can also be used to cut wood. The following will introduce. Moreover, large caliber drilling tools cannot be drilled with hand electric drills, which can easily damage the wooden board and even burn the machine. A large caliber requires the use of a table drill or carving machine. For example, opening a lock hole or similar, 350W or more is sufficient. But if it's made of fiberglass or bathtub materials, 600W or above is better. The glass hole saw has diamond stones on its head, which are hard enough to grind through the glass. If it is ordinary glass, a glass hole saw can be used, but tempered glass is not suitable. In addition, glass openers can also be used to grind hand beads. It can also be used to grind Bodhi roots, with two large and small hole openers in combination, very sharp! Glass openers can also be used to open ceramic tiles. When using a hole opener to drill tiles, add water while drilling. This way, the wear and tear of the drill bit will not be so fast.

• How to Select the Material of the Drill Bit? 2023-07-24

  The materials can be roughly divided into three types: high-speed steel, cobalt containing high-speed steel, and overall carbide. High speed steel (HSS) Since 1910, high-speed steel has been used as a cutting tool for over a century and is currently the most widely used and cheapest cutting tool material. High speed steel drill bits can be used not only on hand electric drills, but also in more stable environments such as drilling machines. Another reason for the durability of high-speed steel may be that high-speed steel cutting tools can be repeatedly ground, and due to their low price, they are not only used to grind into drill bits, but also widely used in turning tools. Cobalt containing high-speed steel (HSSE) Cobalt containing high-speed steel has better red hardness than high-speed steel, and the increase in hardness also improves its wear resistance, but also sacrifices some of its toughness. Like high-speed steel, they can both increase the frequency of use through grinding. Carbide Carbide is a metal based composite material. Tungsten carbide

• How to Choose Drill Bit Coating? 2023-07-24

  Coatings can be roughly divided into the following 5 types based on the scope of use. Uncoated Uncoated cutting tools are the cheapest and are usually used for processing soft materials such as aluminum alloy and low-carbon steel. Black oxide coating Oxidized coatings can provide better lubrication than uncoated tools, and also have better oxidation resistance and heat resistance, which can increase the service life by more than 50%. Titanium nitride coating Titanium nitride is the most common coating material and is not suitable for materials with high hardness and processing temperature. Carbon nitride titanium coating Carbon nitride titanium is developed from titanium nitride and has higher resistance to high temperatures and wear, usually in purple or blue. Used to process cast iron workpieces in Hass' workshop. Aluminum titanium nitride coating Aluminum titanium nitride is more resistant to high temperatures than all the above coatings, so it can be used in higher cutting environments. For example, processing high-temperature alloys. It

• What Geometric Features Do Drill Bits Have? 2023-07-24

  Geometric features can be divided into the following three parts. Length The ratio of length to diameter is called double diameter, and the smaller the double diameter, the better the rigidity. Choosing a drill bit with a blade length that is just enough to remove chips and a hanging length that is as short as possible can improve the rigidity during machining, thereby increasing the service life of the tool. Insufficient blade length is likely to damage the drill bit. Drill angle A drill tip angle of 118 ° may be the most common in machining and is typically used for machining soft metals such as low-carbon steel and aluminum. This angle of design usually does not have a self centering function, which means that it is inevitable to first process the centering hole. A drill point angle of 135 ° usually has a self centering function, as there is no need to process the centering hole, which will make drilling the centering hole separately no longer a necessary process, thus saving a lot of time. Spiral angle For the vast majority of materials, a helix angle

• What's the Difference between a Twist Drill Bit and an End Mill? 2023-07-19

  Twist drill bit is a tool for machining holes from solid materials, and it is also the most widely used tool in hole machining tools. The easy twist drill bit tool is a tool for drilling the round hole of the workpiece through its rotary cutting relative to the fixed axis. It is named because its chip holding groove is in spiral shape and looks like fried dough twists. Spiral grooves have 2, 3, or more grooves, but 2 grooves are the most common. The high speed steel twist drill bits can be clamped on the manual and electric hand fried dough twists drilling tools or drilling machines, milling machines, lathes and even machining centers. The precision twist drill bits are generally made of high-speed Tool steel or hard alloy. At present, precision twist drill bits are widely used in automobile manufacturing, logistics, mold, machinery and other departments. Because of its increasingly wide application in various fields, the requirements for application are also increasing. The high speed steel twist drill bits are tools for drilling the round hole of the workpiece through their rotary cutting relative to the fixed axis. It is named because its chip holding groove is helical and shaped like Fried Dough Twists. The main cutting edge of the end mill is on the cylindrical surface, and the cutting edge on the end face is the auxiliary cutting edge. An end mill without a central edge cannot move along the axial direction of the milling cutter during operation. According to national standards, the diameter of the end milling cutter is 2-50 millimeters and can be divided into two types: coarse teeth and fine teeth. A diameter

• How to Maintain the Straight Shank Twist drill Bit? 2023-07-19

  The straight shank twist drill bit is the most widely used tool for hole machining. The usual diameter range is 0.25-80 millimeters. The easy twist drill bit tool mainly consists of a working part and a handle. The working part has two spiral grooves in the shape of fried dough twists, hence the name. 1. When drilling steel parts, please ensure sufficient cooling capacity of the high speed steel twist drill bits and use metal Cutting fluid. 2. Good rigidity of the drill rod and clearance between the guide rails can improve the accuracy of drilling and the lifespan of the drill bit. 3. Please ensure the flatness and cleanliness between the magnetic base and the workpiece. 4. When drilling thin plates, the workpiece should be reinforced, and when drilling large workpieces, please ensure the stability of the workpiece. 5. At the beginning and end of drilling, the feed rate should be reduced by 1/3. 6. For materials with a large amount of fine powder during drilling, such as cast iron, cast copper, etc., compressed air can be used instead of coolant to assist in chip removal. 7. Please remove the iron filings wrapped around the drill body

• How to Grind a Twist Drill Bit? 2023-07-19

  The twist drill bit is a commonly used drilling tool with simple structure. Grinding the drill edge is very important for workpiece processing, but it is not easy to grind it properly. The key lies in mastering the methods and techniques of blade grinding. With the mastery of these methods and the experience of multiple blade grinding, one can effectively grasp the grinding scale of the drill bit. First, before drilling, first place the main cutting edge of the easy twist drill bit tool on a horizontal plane with the grinding wheel surface, which means that when the blade contacts the grinding wheel surface, the entire blade must be ground. This is the first step in the relative position between the drill bit and the grinding wheel. Once the position is set, slowly lean against the grinding wheel surface. Second, if the angle is not correct, the sharp angle of the high speed steel twist drill bits will directly affect the size of the top angle, the shape of the main cutting edge, and the oblique angle of the transverse edge. It refers to the positional relationship between the axis of the drill bit and the surface of the grinding wheel, which can be seen accurately at an angle of 60 °. Here, it is important to pay attention to the relative horizontal and angular positions of the drill bit before grinding. Both should be considered comprehensively, and do not neglect to adjust the angle or adjust the blade to adjust the angle. Third, after the cutting edge contacts the

• Diamond hole saw 2023-07-12

  www.china-drill-bit.com A diamond hole saw, also known as a diamond core drill bit, is a specialized tool used for drilling holes in hard materials such as glass, ceramic, porcelain, granite, marble, and other stone surfaces. Unlike regular hole saws that have teeth, diamond hole saws have a circular edge embedded with tiny diamond particles. The diamond particles on the edge of the hole saw create a grinding action when rotated, allowing them to slowly cut through the material. The diamonds make the hole saw extremely durable and capable of drilling through hard substances that would quickly wear down or damage traditional hole saws. Diamond hole saws come in various sizes and designs to accommodate different hole diameters and drilling applications. They are commonly used in construction, remodeling, plumbing, electrical work, and other projects that involve drilling holes in hard materials. When using a diamond hole saw, it's essential to follow the manufacturer's instructions and use proper safety precautions. These may include wearing protective goggles, gloves, and a dust mask, as the drilling process can produce fine particles and debris. Additionally, using water or a coolant during drilling helps to lubricate the bit and prevent overheating. Remember that diamond hole saws are designed for specific materials, so it's crucial to select the right type and size of hole saw for your intended application.