- This tool turn your corded and cordless drill into a bench grinder for surface preconditioning, grinding, sharpening, and removing rust. - Easily polish all kinds of knives, metals, handicrafts, jade, scissors, drill bits, chisels, etc., restore their original sharpness and color. - It can also be used to polish scissors, kitchen knives, drill bits, etc., restoring their original sharpness. - Mount the grinder on a conversion rod and then connect it to an electric drill to make grinding more convenient and quick. - Fix it on a tabletop with the fixed bracket, which provides better comfort and reduces fatigue for professional cutting and grinding applications. - It is suitable for lithium electric drills and AC electric drills, but NOT for an electric mill, electric hammer, electric wrench, impact drill. - Adopt precision bearing with good concentricity for more accurate grinding without shaking.The traditional grinder is bulky and not easy to carry, but our grinder is small and portable, suitable for a variety of work scenarios, such as at home, shop, garage, etc..