Item Type: Drill Bit Sharpener_x000D_ Material: Corundum Grinding Wheel_x000D_ Color: Blue_x000D_ Product Size: Approx. 2mm-5mm / 5/64in -13-64in, 5mm-8mm / 7/32in -21/64in, 8mm-12.5mm / 11/32in-1 / 2in_x000D_ Total Length: Approx.170mm/6.69in_x000D_ Weight: Approx.175g/6.2oz_x000D_ Function: A quick and easy way to sharpen drills 1Use electric drill power drive, wear?resistant corundum grinding wheel to improve drill bit rate. 2Simple and safe method of sharpening the bit, improve its working performance. 3The grinding wheel bit has a simple structure, excellent material, good grinding effect, and labor saving. 4Mainly used for grinding iron drills, other high?hardness drills are not suitable for use. 5Lightweight and compact size, drill grinding tools are easy to carry.1 x Drill Bit Sharpener1 x Plastic Cap1 x Wrench Tool1 x Grindstone1. Please allow 1?2in error due to manual measurement. Thanks for your understanding._x000D_ 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard._x000D_ 3. After use, place it in a dry and clean place. Do not use it with irritating chemicals, otherwise the service life may be shortened.