17/64 Cobalt Drill Bit USA Made. Bisco of Florida Cobalt Drill bits are for use in hardened steel.
Metric Carbon Steel Hex Dies Special Thread Size are sold by Bisco Tool Supply. These Hex Dies are ideal for dressing over bruised or rusty threads. Hex Dies are a cost effective rethreading tool. No special holder is required for these hex dies, only a wrench is needed. Bisco Tool Supply Carbon Steel Hex Dies are for sale at affordable prices and ideal for shop and field maintenance.