Specification: Item Type: Drill Bit Sharpener Material: Corundum Grinding Wheel Color: Blue Product Size: Approx. 2mm-5mm / 5/64in -13-64in, 5mm-8mm / 7/32in -21/64in, 8mm-12.5mm / 11/32in-1 / 2in Total Length: Approx.170mm/6.69in Weight: Approx.175g/6.2oz Function: A quick and easy way to sharpen drills Package List: 1 x Drill Bit Sharpener 1 x Plastic Cap 2 x Wrench Tool 2 x Grindstone Note: 1. Please allow 1‑2in error due to manual measurement. Thanks for your understanding. 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. 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.