Irwin Unibit Fractional Step Drill Bit - #4 3/8-in - Hex Shank - 12 Hole Sizes - Speed Point - Each

Create openings in metals and wood with the American Tool step drill bit. It is a multi-step bit made from high-speed steel. This high-speed steel step bit is capable of drilling 12 different hole sizes in steps of 3/8 in.

Laser marked sizes won't wear off with use12 hole sizesHigh speed steel fractionalSingle-fluted cutting edge for greater control and rounder holesIdeal for drilling holes in thin materials such as mild steel, copper, brass, aluminum, plexiglass, wood and laminates3-flatted shank won't slip in chuckSpeedpoint tip for fast starting
Specifications - Diameters of Holes Drilled
3/16-in to 7/8-in
Material
High-speed steel
Number of Hole Sizes
12
Set/Individual
Individual
Shank Size
3/8-in
Shank Type
Hex
Step Size
1/16-in