Quickly attaches and detaches sanding discs and discs without a wrench Beautifully finished: The underside has a lightly frosted texture to increase friction. The nut can firmly lock the grinding wheel and is not easy to slip. Premium Material: This angle grinder collet nut is made of high-strength alloy, which is not deformed and can withstand 40N torque and 12000RPM high speed. Its quality is guaranteed and its service life is long M14 threaded quick release nut for Bosch, Black & Decker, Dewalt, Flex, Hitachi, Metabo, Makita and many more brands. Precise and simple saves a lot of time Why do you choose me? 1. Quick fit nuts are made of high-strength alloy and can be used in high-strength working environments. 2. Quick fit nuts have a good matte texture to reduce the risk of injury when the nut is pushed. 3. Compared with traditional nuts, it has a quick-locking structure and can be used to tighten bolts with bare hands. 4. Quick release nut fits all angle grinders with M14 thread,