... Metal Cutting Saw BladesMaterial: HSS,Website:http://www.chinabettool.com, High Speed SteelType: Standard, Non-standardIt is used to cut metal, ... so the hardness is harder than normal materials, when in high speed cutting, burr will not been left, cutting edge is good ... and some hard materials.M2 with special coating, it is suitable for cutting stainless steel in a high cutting speed and high feed rate ...