1. Product Diameter: 10mm 2. Spiral design: U type debris exhaust groove can effectively prevent stagnation, fast operation, smooth debris discharge, fast sharp speed accumulation. 3. Can be used with a variety of materials: stainless steel, mold steel, cast iron, aluminum alloy, copper plates, steel plates, iron, wooden boards, etc. 4. SPLIT DESIGN: 135° split point design allows for better positioning of the holes, improving the drilling speed. 5. Convenient design: Can be directly attached to the chuck like impact driver or driver. Compatible with electric tools such as cordless impact drills, power drills, and power drills.