... 25 micron, and so on, mostly used for high precision cutting of non-ferrous metal (copper, aluminum, alloy ), finish ... piece.8. The working life of a PCD cutting edge is usually 50 to 250 times longer than ... that of traditional sintered carbide cutting tools. Product No.Angle(A)Diameter(D)Thickness( ... triangle, rhombus, sector and so on. Round PCD Cutting Tool Blanks with no chamfer