Quick Release Nuts: Quick release nuts for quick attachment and release of diamond cutting discs, washers, sanding wheels and other accessories. Easy to use: this quick release nut for angle grinder has a quick release locking structure which can be tightened very firmly and is not easy to loosen It can be tightened or loosened without using a wrench The operation procedure is very simple and fast. Excellent material: made of high-strength steel, high strength without deformation, with a speed of 1200 W of 11000 rpm and a polishing disc of 125 mm in diameter. Compatibility: Suitable for most angle grinders available on the market, and for most types of diamond cutting discs, grinding discs, grinding discs, diamond plates, etc. Note: Please check the nut before use for r ensure that it is not defective or damaged. Size: 13 x 50mm Size:0.51x1.97inch | Color:Silver 2 Pieces. Quick clamp/quick release/nut M 14 with quick release for all angle grinders, angle grinders