Features: Universal: Suit for all with M 14 thread angle grinders Self Locking Design: Innovative design, unique self-locking structure, rotating by hand, tighten the grinding discs more powerfully Universal 5/8"-11 Thread Compatibility: The Angle Grinder Self-Locking Nut is compatible with most angle grinders equipped with a 5/8"-11 threaded spindles, making it a versatile replacement part for grinding discs, cup wheels, diamond-cutting blades, and more Easy to use: The angle grinder quick release nut has a quick release structure that can be tightened very firmly and is not easy to loosen. It can be tightened or loosened without a wrench. The process of using it is very easy and quick. Wide Application: Suitable for example diamond-cutting disks, grinding wheels, cup-shaped grinding wheels, diamond-plates and other types of grinding wheels, etc. Notice Actual color may be slightly different from the image due to different light effect. Please allow 1-3cm deviation due to manual measurement. Description: Materials: Steel and powder metallurgy Specifications: 5/8-11 press plate, premium black Weight: 115g Size: 48.5 x 13.5mm Package List: 1x Metal Grinder Lock Nut