... spline hobbing cutter, bevel gear shaper cutter, HSS drill bit, screw driver, steel measuring tape, reamer, ... nose, twist drill, HSS tool bits, PCD diamond insert, gear hob,....Carbide Fixed-point Drill Bits 1, Suitable for Mould steel, ... Cast iron, Aluminum alloy, Copper, and Alloy steel processing. 2, Mainly for ... 20×100L121220100 Carbide Fixed-point Drill Bits