... °,7°,11°,12°5)Processing technic:Cold pressing,Hot insetTapered button bits (28mm, 30mm 32mm, 34mm, 36mm, 40mm, 42mm, 44mm and so ... Bit integral. Rod 19mm, 22mm; Shank hex. 19mm, 22mm)Thread Button Bits (33mm, 35mm, 45mm ,51mm,57mm,64mm,70mm,76mm, 89mm, 102mm ... ( Hex.32mm, 35mm, 38mm; Round 32mm, 38mm, 45mm, 51mm)Retrac Button bits with different Thread different diameters. (51mm, 64mm,70mm,76mm,89mm ...