Irwin Tools IRWIN Step Drill Bit Set, General Purpose, 4-Piece (10225)
- Single-flute cutting edges for greater control through steps
- 3-flatted shanks prevents slipping in drill chuck
- Non-skid self-starting tips eliminate skidding and the need for center punching
- Sizes clearly laser-etched to make precise drilling easy
- Set includes HSS , 2, 4, and 21 size step drills
- 4 most popular Unibit sizes cover a wide range of applications
- SpeedPoint tip prevents "walking," gets fast starts, and eliminates the need for pilot/starting hole
- Single-flute cutting edge drills true, round holes with smooth, clean finish
- Hex shank provides secure grip in the drill chuck
- 4 most popular Unibit sizes cover a wide range of applications
- SpeedPoint tip prevents "walking," gets fast starts, and eliminates the need for pilot/starting hole
- Single-flute cutting edge drills true, round holes with smooth, clean finish
- Hex shank provides secure grip in the drill chuck
The IRWIN Unibit High-Speed Steel Step Drill Set features single-flute cutting edges for greater control and more precise drilling. Three-flatted shanks prevent the bits from slipping in the drill while the non-skid self-starting tips eliminate skidding and the need for center punching. Set includes #1, 2, 4, and 21 size step drills.