- Suitable for general drilling of steel, stainless steel, copper, aluminum and other surfaces
- 1. Made of high-speed steel, hard, wear-resistant and durable.
- 2. Use titanium coating to reduce friction and heat.
- 3. Unique step structure can open various sizes of holes.
- 4. Compared with ordinary twist drills, it is not easy to break. Very suitable for drilling holes in a variety of materials, including steel, bronze, aluminum, etc.
