#1 Unibit 1/8"-1/2" X 32nds
- Single cutting edge creates perfectly round holes.
- Can be used on metal, plastic and other thin materials.
- Each step is marked for easy hole size selection.
- Made of high speed molybdenum steel.
- Heat treated and tempered for long life.
- Perfect for drilling grommet holes for installation of wire, control cables or antenna leads.
- Sold individually.