Twist Drill Bits

Twist drill bits for metal, wood and plastic: high-speed steel jobber, pilot point, cobalt, black oxide, titanium, brad point, aircraft extension and wire gauge bits, plus step bits, sold singly and in sets. Brands include Irwin, Milwaukee, Blu-Mol Xtreme, ARTU and Klein Tools.

Cobalt bits are for hard metals such as stainless steel; high-speed steel suits general metal and wood; brad point bits start cleanly in wood. Bits come in fractional and number (wire gauge) sizes, and hex-shank bits fit impact drivers. Part of Drill & Driver Bits.