ITEM NAME:2-12.5mm Drill Bit Sharpener Portable Corundum Grinding Wheel Tool Corundum N9L7 2-12.5mm Drill Bit Sharpener Portable Corundum Grinding Wheel Tool Corundum N9L7 Use the electric drill unit.Improve the use of the drill.Wear resistant corundum grinding wheel. Great for quick punching, tapping, etc. And fast replacement composite cone, uses sharp drill principle. Lightweight and compact, the drill sharpening tool is easy to carry. Made of high quality abs plastic and brown corundum grinding wheel, it can grind iron drill very well, and is durable and not easy to damage. Nainly used for grinding iron drills, other high hardness drills are not suitable for use. Specifications:.Use the electric drill unit.Improve the use of the drill.Wear resistant corundum grinding wheel. 1 x Blue Drill Bit Sharpener. Nainly used for grinding iron drills, other high hardness drills are not suitable for use.