... , screw driver, steel measuring tape, reamer, hex key, wrench, grinding wheel, diamond tool, thread tap, ball nose, twist drill, HSS tool ... bits, PCD diamond insert, gear hob,....Carbide Fixed-point Drill Bits 1, Suitable for Mould steel, Cast iron ... ×8×16×100L881610010D×10×20×100L10102010012D×12×20×100L121220100 Carbide Fixed-point Drill Bits