#1 unibit, 1/8" to 1/2" step drill, 13 hole sizes from 1/8" to 1/2" in 1/32" increments, maximum material thickness 1/8", 3 flatted shank, shank size 1/4", single fluted cutting edge assures true round holes & allows greater control, carded.
| SKU | 2005007 | UPC | 038548101019 |
| Model Number | 10231 | Brand | Irwin |