Description Description Irwin 10233CB 1/4" - 34" Unibit Cobalt Alloy Steel Step Drill 6X Longer life vs. the competition M35 grade Cobalt Alloy HSS Radial concave flute Speedpoint tip Laser marked sizes View AllClose
Choose Options Quick view Irwin Unibit Step Drill Bit Irwin Tools MSRP: Now: $40.40 - $86.05 Was: Irwin Unibit Step Drill Bit High Speed Steel Fractional Self-Starting Single-flute cutting edge for better control through steps
Add to Cart Quick view Irwin 10220 Unibit #20 9/16" to 1" Step Drill Bit Irwin Tools MSRP: Now: $83.20 Was: Irwin 10220 Unibit #20 9/16" to 1" Step Drill Bit High Speed Steel Fractional Hole Enlarging Features: Single-flute cutting edge for better control through steps
Add to Cart Quick view Irwin 10235 Unibit #5 Step Bit 1/4" to 1-3/8" Irwin Tools MSRP: Now: $152.55 Was: Irwin 10235 Unibit #5 Step Bit 1/4" to 1-3/8" High Speed Steel Fractional Self-Starting Single-flute cutting edge for better control through steps
Quick view Irwin Tools 10313ZR Unibit #13 1-1/8" Step-Drill Bit, 1/2" Shank MSRP: Now: $90.80 Was: Irwin Tools 10313ZR Unibit #13 1-1/8" Step-Drill Bit, 1/2" Shank Single-flute cutting edge for greater Hex shank helps prevent slipping in the drill chuck
Add to Cart Quick view Irwin 15104 Titanium Unibit Step Bit 3/16" to 7/8" Irwin Tools MSRP: Now: $100.05 Was: Irwin 15104 Titanium Unibit Step Bit 3/16" to 7/8" Titanium Fractional Self-Starting