Features GRINDING TOOL: Twist drill sharpener, mainly used for grinding and polishing iron drill bits, widely used in industrial and woodworking projects. PORTABLE HANDLE: The drill sharpener is a portable design, with ABS handle, with good toughness, wear resistance, convenient and practical. CORUNDUM WHEEL: Equipped with corundum grinding wheel, has high hardness and good grinding effect, time saving and labor saving. STANDARD SHANK: The drill grinder has standard 1/4in shank, which can be installed with an electric drill for use, efficient and stable in operation. MULTIPLE USAGES: The sharpener can be used not only for grinding drill bits, but also for grinding scissors, screwdriver, cutter, has strong practicability. Specification: Item Type: Drill Bit Sharpener Material: Corundum grinding wheel, ABS Features: Mainly used for grinding iron bits, other high hardness bits are not suitable for use, and wear will be large Specification: Approx. 2-12.5mm / 0.1-0.5in Shank Diameter: 6.35mm (1/4in) Package List:1 x Drill Bit Sharpener Note:After use, keep in a dry, clean place. Package List 1 x Drill Bit Sharpener