Quick release nuts: M14 quick release nuts for quickly attaching and loosening diamond cutting discs, washers, abrasive discs and other accessories. Non-slip design: the bottom has a texture thin mate so that the nut locks the disc firmly without slipping. Cleanly wipe the abrasive, spindle and quick release nut before use to prevent foreign matter from clinging. Material: Made of high strength alloy, works at high strength without deformation, supports 40Nm torque and 12,000rpm high rotational speed, which increases service life. Compatibility: Suitable for all M14 angle grinders available on the market; suitable for most kinds of diamond cutting discs, abrasive discs, flat discs, etc. Attention: Please check the nut before use to avoid a safety accident to ensure that it is not defective or damaged. Diameter: 50mm - Height: 13 mm - Weight: 111 g.ires. Please Make Sure It Is Installed Well Before Use.