
Ideal for making countersink holes for countersunk screw heads, as well as countersink holes for plugs The countersinks are made of carbon steel, the surface is coated with titanium, sturdy and durable, not easy to rust, long lasting of life. This kit is suitable for home DIY and daily use, it allows drilling easily and efficiently, without burrs. Universal size compatible with all types of drill bit, drilling machines, including vertical drilling machine, and another common milling cutter. This set of 6 90 degree 3-edged drilling milling cutters is suitable for working on metal and some non-metallic materials, such as metal. coal steel, light iron, insulation boards, PVC boards, aluminum, hard and soft wood, etc. SIZE: Diameter Head Size * Shank Diameter * Length 6.3MM: 6.3MM*5MM*37MM 8.3MM: 8.3MM*6MM*40MM 10.4MM:10.4MM*6MM*39MM br/> 12.4MM:12.4MM*10MM*46MM 16.5MM:16.5MM*10MM*47MM 20.5MM:20.5MM*10MM*47MM Package contains: 1X 6pc Three chamfering drill