Quick Release Nuts: Quick release nuts with M14 thread for quickly attaching and loosening diamond cutting discs, grinding wheels, grinding wheels and other accessories. Non-slip design: The underside has a fine matte texture so the nut locks the washer firmly in place without slipping. Wipe off the abrasive, spindle and quick release nut before use to prevent foreign objects from getting stuck. Material: Made of high-strength alloy, works with high strength without deformation, withstands 40Nm torque and 12000rpm high speed, resulting in longer service life. Compatibility: suitable for all M14 interface angle grinder available on the market; suitable for most kinds of diamond cutting discs, grinding wheels, cup wheels, diamond plates, etc. Attention: Please check the nut before use to avoid safety accident, to ensure that it is not broken or damaged. Diameter 49 mm, height 13 mm, weight 111 grams. Quick release nut size for M14 angle grinder Quick and tool-free change of cutting discs, suitable for metal cutting discs, diamond cutting discs Quantity shipped: 2 pieces Size as shown