1. Alloy head material with stronger hardness, low resistance, high hardness, improving work efficiency.
2. Triangular handle design makes the clamping more tight and does not slip.
3. U-shaped spiral grooves is smooth and flat, and the drilling is smoother.
4. Strong toughness and wear resistance, can be installed in the hand drill,electric drill,bench drill.
5. Wide Application: Provides smooth and accurate drilling in ceramic tile, glass, brick wall, wood, etc.