Bi-Metal Hole Saw Ø70mm M42 HSS Bi-Metal Hole Saw Hole Saw with Hexagonal Adapter and Centering Drill Bit for Drilling Plastic, PVC, Wood, Fiberboard, Flexible Metal

The hole opener is made of M42 and bimetal high-speed steel, and the cutting part has higher hardness (≥64HRC) and higher toughness. The arc design features high concentricity accuracy, uniform tooth edge, anti-rust, wear-resistant and long service life. It offers excellent performance and higher cutting resistance than other hole saws on the market. The increased hardness brought by carbide technology and optimization of the shape of the product teeth allow our hole saws to offer a faster cutting speed. The high-speed steel blade saw attachment provides impact-resistant teeth and prevents teeth from falling out, which is more accurate than standard hole saws, and the difference in cutting diameter can be less than one millimeter. The clean and stress-free edge design makes cutting smooth and fast. The newly designed chip removal hole can quickly remove chips without causing cracks and jammed parts, and wood chips are removed more easily. The drill spring will automatically push the wood chip disc out of the saw immediately after the hole is finished. Wide application: the hole saw is suitable for cutting wood, plastic, mild steel, stainless steel, cast iron, bronze, copper, aluminium, etc. ceiling lights, speakers, etc. Suitable for: bench drills, column drills, pistol drills, various hand drills, etc. When using the hole opener kit for a long time, please control the speed appropriately, RPM≤1000, which can easily cause high-speed wear of the hole opener. The surface of the product is covered with a thin layer of protective oil (anti-oxidation, anti-rust), be careful not to get dirty and check the condition of the hole opener.