Klein Tools 3-Step Drill Bit, 1-3/8"" X 7/8"", High Speed Steel, 46 mm, Straight (KTSB15)

3-Step Drill BitStep bits are coated with aluminum titanium nitride and are 10 times more durable than steamed black oxide coating for longer bit lifeDouble, straight flute removes chips for clean cuts and drillingDurable, 3/8-Inch hex shank provides a firm, positive grip and won't spin out in the drillLaser markings are easy to read for quick size identificationFast-starting, non-walking drill tipFor use on steel (up to 16 gauge), wood, plastic, and aluminum