Selection of high-quality alloy sheet, makes and durable, which is the head to have a curved, advantageous for chip removal, drilling is efficient. Enable woodworkers, without drilling holes through the material, if a clean and accurate bottom of a hole. The uses of drilling in wood, doors for installation of spherical tip, top notch, plastic products, wood, plywood, etc. soft trepane, less soundproof. Sharp edge, high hardness, accurate positioning, high precision, smooth cutting, resistance to , high hardness. Suitable for the hand drill, are driven drill motor and the drilling type of magnetism., Weight: 0.2976240537 pounds, Manufacturer: Rtxbvg