Quick Release Nuts: Quick release nuts with M14 thread for quickly fastening and loosening diamond cutting discs, grinding wheels, sanding wheels and other accessories. Non-slip design: The bottom has a textured thin fit on the washer to make the nut securely fix the washer without slipping. Wipe 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 resistance without deformation, can withstand 40Nm torque and 12,000rpm high speed, resulting in a longer service life. Compatibility: suitable for all angle grinders with M14 interface on the market; Suitable for most types of diamond cutting discs, grinding wheels, cup wheels, diamond plates, etc. Attention: Please check the nut before use to avoid safety accidents and make sure it is not broken or damaged. Diameter 49 mm, height 13 mm, weight 111 grams. Fits perfectly. Powerful product and super fast delivery! It is the perfect