Twist Drill Multifunctional Single threaded U-type chip discharge groove for hand electric drill table etc
- The head is of the special process technology, high hardness and small incision resistance
- Widely used in ceramic tile, glass, brick wall, wood, etc.
- Single threaded U-type chip discharge groove make it smoother to drill.
- The design of triangular handle make it more fastening to clamp and not easy to slip.
- The surface is of painted and full grinding processing with anti-rust treatment which is smooth to drill.
