Used for wood perforation, spherical tip installation door, drawer tip, plastic products, wood, plywood, etc, Trepanning smoother, less noise. edge, high hardness, precise positioning, high , smooth cut, impact strength, high toughness. Enable woodworkers to drill holes without having to drill through the material when a clean and precise down on a hole. Selection of high-quality alloy blade, blade make more and , it is head to take bow curved, advantageous for chip removal, perforation is more efficient. Suitable for handheld drill, stand motor driven drill and mobile band type magnetism drill., Manufacturer: Littimoon