Irwin Step Drill Bit 4mm-22mm
Single cutting edge creates perfectly round holes in metal, plastic, wood and other thin materials without centre punching.
- U.S.A made
- Automatically deburs drilled hole
- Constructed of industrial grade high speed molybdenum steel for long life
- Hole Size: 4 to 22mm. Increments: 10 x 2mm. Drill Shank: 10mm