IRWIN Unibit 3-Piece Step Bit Set

Description

null Single-fluted cutting edge for greater control and rounder holes Ideal for drilling holes in thin materials such as mild steel, copper, brass, aluminum, plexiglass, wood and laminates 3-flatted shank won't slip in chuck Speedpoint tip for fast starting Laser marked sizes won't wear off with use Unibit #3 is engineered with M35 Cobalt steel for maximum life when drilling in tough steel Unibit #3 Cobalt contains a 3/8-in hex shank and contains 9 hole sizes- 1/4-in-3/4-in (1/16-in steps) Unibit #1 contains a 1/4-in hex shank and will drill 13 hole sizes- 1/8-in-1/2-in (1/32-in steps) Unibit #4 contains a 3/8-in hex shank and will drill 12 hole sizes- 3/16-7/8-in (1/16-in steps)