DescriptionWith simple structure and great material, the grinding wheel drill bit has good sharpening effect, saving much effort. Durable, fine workmanship, comfortable tentacles. easy to use and carry, durable and practical.Features- Color: Black. - Material: Nylon, Corundum Yarn Wheel. - Size: About 19.80X12.00X12.00cm/7.78X4.72X4.72inch. - With simple structure and great material, the grinding wheel drill bit has good sharpening effect, saving much effort. - The head of the drill grinder can be twisted, more angle grinding bit, screw positioning, easy to use. - Forget the days of trying to find the correct angle by hand or accidentally tapering the of your tools. - Improve the utilization of drill bits, solve the troubles you have been buying drill bits, save time and save money. - Adopted from material, it is durable and long lasting use.