Straight, Double Fluted Step Drill Bits from Klein Tools provide cleaner cutting and drilling. The aluminum titanium coating is 10 times more durable than steamed black oxide for longer bit life. 3/8-Inch hex shank is durable, and has a firm, positive grip. Laser-etched markings provide quick size identification on primary holes. This step bit has 3-hole sizes from 7/8-Inch to 1-3/8-Inch (22.2 to 34.9 mm).
Step bits are coated with aluminum titanium nitride and are 10 times more durable than steamed black oxide coating for longer bit life
Double, straight flute removes chips for clean cuts and drilling
Durable, 3/8-Inch hex shank provides a firm, positive grip and won't spin out in the drill
Laser markings are easy to read for quick size identification
Fast-starting, non-walking drill tip
For use on steel (up to 16 gauge), wood, plastic, and aluminum
7/8-Inch to 1-3/8-Inch (22.2 to 34.9 mm), 3-Step sizes