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 fine matte texture of so that the nut locks the disc firmly without slipping. Wipe the abrasive, spindle and quick release nut cleanly before use to prevent foreign matter from clinging. Material: Made of high strength alloy, works at high strength without deformation, supports 40Nm torque and 12000rpm 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 using to avoid a safety accident to ensure that it is not defective or damaged. Diameter: 49 mm - Height: 13 mm.