Weight:0.3 kg Size: 5 x 5 cm Color: as shown ÉNuts quick release:Nuts quick release with M14 thread for quickly attaching and detaching washers. Diamond cutters, pot washers, grinding wheels and other accessories. Non-slip design: the bottom has a fine matte texture, so the nut locks the wheel firmly without slipping.Wipe abrasive, spindle and nut clean. Quick release before use to prevent foreign objects from sticking. Material: made of alloy High strength, high strength without deformation, can withstand 40nm torque and 12000rpm high speed, which extends the service life. Compatibility :Suitable for; all angle grinders M14 interface available on the market. and most types of hard drives. Diamond cutting discs, grinding wheels, cutting disc pots, diamond plates, etc. Please note: In order to avoid safety accidents, please check the nut before use to ensure that it is not broken or damaged.diameter 50mm; Height 13mm