This is a diamond coated carbide wheel that replaces the paper wheels you put on your Dremel to grind nails. It fits on the shank you currently use on your Dremel. This wheel is washable and can be used to grind nails in the tub to keep the dust down. It can be used on dogs, cats, horses, any reptile and even birds. A unique Feature is if the nail has rough edges after clipping, this wheel will not splinter the nail like the paper wheels. It leaves a very smooth finish without the vibration.