Long Life Cutting Metal - The Expert Diamond Metal Wheel uses Bosch Diamond Technology, which means optimum quality diamond grits fixed to a steel body. This super-hard edge lasts many times longer than even the best bonded discs and can cut a wide variety of ferrous and non-ferrous metals with ease. It doesn’t shatter if dropped, produces no chemical smell or extra dust during cutting and maintains a constant cutting depth and speed throughout its long life. Click it on with X-LOCK – the fastest accessory-changing system on the market. Also fits nut and thread angle grinders.