- 3 flatted shank prevents slipping in drill chuck
- Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates
- New SpeedPoint tip penetrates faster than previous Unibits and prevents walking
- Patented single-flute cutting edge gives the user a true round hole every time
- Single-flute cutting edge for greater control through steps
![Irwin Titanium Fractional Self-Starting Unibit, 1/4"-3/4", #3, 9 Steps, #15103ZR (1/Pkg) Irwin Titanium Fractional Self-Starting Unibit, 1/4"-3/4", #3, 9 Steps, #15103ZR (1/Pkg)](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/260714/451344/15103ZR__48407.1670965852.jpg?c=2)