Ideal for jig grinding, internal grinding, and small hole precision grinding. Use diamond pins for glass, ceramics, ferro-ceramics, cemented carbides, and other hardened abrasive material. Use Borazon for high carbon, high chrome, high speed steels, such as M2, M3, M7, and T15 ; Die Steels, such as : D2,D3,HB,A & O; Alloy Steels (harder than 50 RC); Nickel and Cobalt Base Super Alloys; Titanium, and Stainless Steels. Hardened steel shanks for minimum deflection.