Product Information
- Unique step structure, one drill can open a variety of sizes and sizes, one drill bit can get a bit of drill bit
- Convenience: The self-centering function prevents slippage and increases cutting speed. The drill is marked with the available diameter. It is very convenient to choose the right size.
- Automatic center punch: Provides automatic, high-impact, spring-loaded impact when pressed against the surface, adjustable cap to adjust impact
- Material: High speed steel (suitable for workpieces with hardness below 25°, such as iron plate, aluminum plate, PV plate, insulation plate)
- Use tools: pistol drill, bench drill. When the water is cooled while working, it can effectively extend the service life of the drill bit. The recommended drilling speed is 250-400 rpm.
