Item Type: Portable Drill Grinding Device_x000D_ Material: ABS, Grinding Wheel_x000D_ Scope of Application: Bit Grinding, etc 1Made of high?quality ABS plastic and brown corundum grinding wheel, High hardness, rustproof, solid and durable, 2Use this drill bit sharpening tool with your power drill to keep bits sharp and ready for use. Give your old blunt drill bits a second life 3The grinding wheel is powder corundum grinding wheel, so the product is mainly used for grinding iron type drill bits. 4Self?centering point, do not need assistant center drilling or center punching. It also improve the utilization of drill bits. 5The small and light drill bit sharpener is easy to carry and can be used at any time, saving time and money.1 xDrillBitSharpener1 x Grinding Wheel1 x Wrench