[High-quality materials]: High-strength alloy collet nut angle grinder, high-strength work, not deformed, withstand 40N torque and 12000rpm high speed , the quality is guaranteed and the service life is long. [Ease of use]: The quick release angle grinder nut is a quick locking structure that can be tightened very firmly and is not easy to loosen. It can be tightened or loosened firmly without using a wrench. The process of use is very easy and quick. [Non-slip design]: The floor has a fine frosted texture to increase friction, and the nut can lock the grinding wheel firmly and does not slip easily. Quick-release nuts with M14 thread for quickly attaching and loosening diamond blades, cutting discs, grinding wheels and other accessories. [Wide range of applications]: The clamping nut is suitable for all angle grinders with an M14 interface on the market, for DeWalt, Bosch, Makita, Metabo, Hilti and of course for all angle grinders not mentioned, such as diamond cutting discs, grinding