The hole-opener (cutter) is installed on the ordinary electric drill, which can conveniently cut round holes, square holes, triangular holes, straight lines and curves on any surface such as the plane and spherical surface of various plates such as copper, iron, stainless steel and perspex.
1. Woodworking hole saw
Generally speaking, woodworking hole saw is installed on hand electric drills or bench drills. The electric hand drill is relatively inexpensive, but it requires high technology to grasp the opening angle. Bench drill is relatively expensive, and the holes drilled are relatively standard.
Moreover, the large-diameter hole cannot be drilled by hand electric drill, which is easy to damage the wood and even burn the machine. For large caliber, bench drill or engraving machine should be used.
2. Glass hole saw
There is diamond on the head of the glass hole saw, which is hard enough to grind through the glass. If it is ordinary glass, you can use a glass hole saw, but tempered glass is not. In addition, the glass hole saw can also be used to grind hand beads.
The glass hole saw can also be used to open ceramic tiles. When drilling ceramic tiles with a hole saw, add water while drilling. So the loss of drill bit is not so fast.
3. Marble hole saw
The principle is similar to glass. There is diamond on the rotating head, which can open marble with high hardness.
The diamond in the head of the glass hole saw is finer than that of the marble hole opener. It is easy to jump the edge and appear rough when using the marble hole saw to open the glass. If using the glass hole saw to open the marble, it will be laborious. If the quality is ordinary, it cannot open a few holes.
4. Bimetallic hole saw
At this point, we have to talk about the alloy hole saw. There are many kinds of alloy hole saw. At present, the market is divided into (ordinary type) for special thin iron sheet, (Practical type) for special thin stainless steel, (medium-grade) for special stainless steel, (high-grade) for special stainless steel (the thickness of steel plate can reach more than 2cm). The use of high-speed steel and alloy hole saw is similar. The difference is that the alloy hole saw is suitable for opening holes on steel plates. High speed steel hole opener is suitable for steel pipe drilling.
The alloy hole saw can open stainless steel, 20mm iron sheet and various steels with high hardness.
The bimetallic hole saw is made of the world’s most advanced electron beam welding, and then hardened by vacuum and high temperature. Its tooth shape is sharp and durable, the edge is not easy to fall off, and the stability is high. It is widely used in industrial cast steel, casting, automotive aluminum, engineering pipe opening, iron plate opening, furniture wood opening, galvanized pipe, fire pipe, plastic, wood, gypsum board and other openings.
Post time: Aug-20-2022