- 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
- Three flatted shank prevents slipping in drill chuck
- New SpeedPoint tip penetrates faster than previous Unibits and prevents walking
![Irwin Unibit® Titanium Metric Self-Starting Step Drill Bits, 4MM-22MM, 10 Steps, 1/BIT, #16104 (1/Pkg) Irwin Unibit® Titanium Metric Self-Starting Step Drill Bits, 4MM-22MM, 10 Steps, 1/BIT, #16104 (1/Pkg)](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/256388/361320/585-16104__28917.1595427030.jpg?c=2)