Fast : Great for fast dilling, tapping,etc. And Fast replacement composite cone, uses drill edged principle. Lightweight and Compact: Lightweight and compact size, the drill sharpening tool is easy to carry. Material : Made of high-quality ABS plastic and brown corundum grinding wheel, it can grind iron drill bit very well, and it is durable and not easy to damage. Applicable Type : Our diamond Drill Bit Sharpening Tool is mainly used for grinding iron dills, other high hardness drills are not suitable for use. Note : The grinding wheel curently equipped with this product is a brown corundum grinding whee, so the product is mainly used for grinding iron-type drill bits. Other high-hardness drill bits are not suitable for use, and the loss will be relatively large. Specification: Brand new Material: ABS + Corundum grinding wheel Main Color: Blue or Orange (Send in random colour) Size: approx. 185*40mm/7.28 * 1.57 inch Feature: Use electric drill power drive. Improve drill bit usage. Wear-resistant Corundum grinding wheel. Easy to use and carry.Durable in use. Feature: 1x Grinding Wheel or 1x Drill Bit Sharpener or 1x Sharpner+1x Wheel or 1x Sharpner+2x Wheel or 1x Sharpner+4x Wheel Notes: 1.Because the display and lighting effects are different, the actual color of the project may be slightly different from the color displayed on the picture. 2.As there may be errors in measuring length manually, I hope you will understand. 3. Please allow measurement deviation due to manual measurement.