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.
The principle of a marble hole opener is similar to that of glass. There is diamond on the turning head, which can be used to make marble with higher hardness. There is a rumor online that glass openers can cut marble, but this claim is actually problematic. Just like a saw that cuts wood cannot cut iron, and a saw that cuts iron cannot cut wood is the same principle. The diamond sand at the head of the glass hole saw is finer than that of the marble hole opener. Using a marble hole saw to punch glass can easily cause bouncing edges and appear rough. If using a glass hole saw to punch marble, it will be difficult, and if the quality is average, it cannot punch a few holes.
When it comes to bimetallic tappers, I have to mention alloy tappers. There are many types of alloy hole openers available on the market, including (ordinary) thin iron sheet, (practical) thin stainless steel, (mid range) stainless steel, and (high-end) stainless steel (with a steel plate thickness of over 2CM). The usage of high-speed steel tappers is similar to that of alloy tappers. The difference is that alloy tappers are suitable for punching steel plates. The high-speed Steel Hole Saw is suitable for drilling steel pipes. The alloy hole saw can open stainless steel, 20mm iron sheet, and various types of steel, with high hardness. The bimetallic hole opener is made by using the world's most advanced electron beam welding, and then subjected to vacuum high-temperature quenching. Its tooth shape is sharp and durable, and the blade is not easy to fall off, with high stability. Widely used in industrial cast steel, castings, automotive aluminum, engineering pipeline openings, iron plate openings, furniture wood openings, galvanized pipes, fire pipelines, plastics, wood, gypsum boards, and other openings. The most common one is for customers to buy and open iron plates. But depending on the brand, the quality also varies.
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