Irwin Tools IRWIN Unibit High-Speed Steel Fractional Self-Starting Step-Drill #5, 10235

Drills 12 different hole sizes, from 1/4" to 1-3/8" by 8ths | 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 | 1/2" hex shank provides secure grip in the drill chuck