- Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates
- Single-flute cutting edge for greater control through steps
- 3 flatted shank prevents slipping in drill chuck
- New SpeedPoint tip penetrates faster than previous Unibits and prevents walking
![Irwin® Titanium Fractional Self-Starting, 3/16"-1/2", 6 Steps, #IR-15102ZR (1/Pkg) Irwin® Titanium Fractional Self-Starting, 3/16"-1/2", 6 Steps, #IR-15102ZR (1/Pkg)](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/259987/448340/15102ZR__65129.1668804140.jpg?c=2)