With a drill or high power electric grinding can use as the grinder.With electric drill soft shaft can use as electric grinding.Easy to operate， convenient to use.The electric drill power is bigger than actual electric grinding power，more suitable to use.Light weight and convenient， necessary for family and small factory.Size:Electric drill electric grinder length:240mmAnnular jaws opens:35-43mmMaterial:Mental.Color:silver.Package include1 X clamp-on bench vise.