IRWIN® Unibit® 225 4 Piece General purpose Step Drill Bit Set with three flatted shank that prevents slipping in drill chuck and features a single flute cutting edge for greater control through steps. Step drill bit includes non-skid self starting tip that eliminates skidding and the need for center punching.
Features
SpeedPoint® tip for fast start
Geometry of single-flute cutting edge drills true
Round holes and provides maximum step control
Single-flute cutting edge for greater control through steps
3 flatted shank prevents slipping in drill chuck
Non-skid self-starting tip eliminates skidding and the need for center punching