Klein Tools Step Drill Bit, Quick Release, Spiral Flute, 1-1/8 in.

The Dual Spiral Flutes on these Step Drill Bits help pull the step bit through the material for faster cutting. The aluminum titanium coating is 10-times more durable than steamed black oxide for longer bit life. Impact rated, the 1/4 in. hex shank provides a firm, positive grip and allows quick and convenient usage with an impact driver and a drill. 2 hole sizes with laser marking for easy identification.