... T41/T42 Cutting wheel; T27 Angle grinders Cutting wheel were widely used in grinding, chamfering and removing the surface of various materials and cutting off copper, ... stainless steel, non-ferrous metal, stone, refractory materials, glass and so on. The ... two kinds of rotating speed, 4300meters/min(72m/s) and 4800 meters/min(80m/s) respectively, of which ...