The 7 inch Dry or wet use turbo diamond cup wheel with a maximum RPM of 7,400 is a high-quality abrasive wheel designed for metalworking supplies. Made by RPM, this cup grinding wheel features a 7-inch diameter and is coated with diamond abrasive material, ensuring efficient and precise grinding capabilities. Whether used for dry or wet applications, this turbo diamond cup wheel offers reliable performance for a wide range of metalworking tasks.