Greenlee #12 Multi-Hole Step Drill Bit, 1-3/8" X 7/8" X 1/16", High Speed Steel (GSB12)

#12 Multi-Hole Step Drill BitDurable split-point tip for fast, accurate material penetrationPatented split-step design optimizes chip load for fast, smooth cutting, and more holes per chargeProgressive cutting edges provide balanced aggression to maximize torque efficiency and minimize stallingImproved double flute design for superior chip evacuation, cutting speeds and tool lifeThree-flat shank for all 1/2" drill chucksLaser markings for quick, easy product and size identification