Greenlee GSB12-B 1-3/8" Step Bit (#12), 1 Piece
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- Durable split-point tip for fast, accurate material penetration.
- Patented split-step design optimizes chip load for fast, smooth cutting, and more holes per charge.
- Progressive cutting edges provide balanced aggression to maximize torque efficiency and minimize stalling
- Improved double flute design for superior chip evacuation, cutting speeds and tool life.
- Three-flat shank for all 1/2” drill chucks.