Step bits are coated with aluminum titanium nitride and are 10 times more durable than steamed black oxide coating for longer bit life

Impact rated shaft allows for use with impact drivers and standard drills

Double spiral flute removes chips for faster cuts and drilling

Laser markings are easy to read for quick size identification of two hole sizes

Fast-starting, non-walking drill tip

Quick-release, 1/4-Inch hex shank provides a firm, positive grip and won't spin out in the drill

For use on steel (up to 16 gauge), wood, plastic, and aluminum