Irwin Uni-Bit 3-Step 1/4 7/8 1-1/8 Inch Step Drill Bit Variable Step Drill Bit
by Irwin
Irwin Uni-Bit 3-Step 1/4, 7/8, 1-1/8 Inch Step Drill Bit — VB11-338
The Irwin VB11-338 Uni-Bit is a 3-step step drill bit that drills three specific hole sizes — 1/4 inch, 7/8 inch, and 1-1/8 inch — in a single tool. It deburrs and countersinks in one pass without a center punch. Designed for electricians and contractors needing precise knockout sizes for conduit, wiring, and panel installations in sheet metal and thin materials.
- Brand: Irwin
- Part Number / SKU: VB11-338
- Steps: 3
- Hole Sizes: 1/4 Inch, 7/8 Inch, 1-1/8 Inch
- Shank: 1/4 Inch Hex
- Application: Sheet metal, electrical panels, and conduit knockout holes
Available Variants:
- (1) Bit
- 12 Pack
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