IRWIN UNIBIT 4-Piece 1/4-in Step Drill Bit Set (1/4-in to 1-3/8-in)

IRWIN UNIBIT 4-Piece 1/4-in Step Drill Bit Set (1/4-in to 1-3/8-in)

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.

• 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
• Sizes clearly laser-etched to make precise drilling easy
• Set includes HSS #1, 2, 4, and 21 size step drills