Quick Release Nuts: Quick release nuts for quick attachment and loosening of diamond cutting discs, washers, sanding wheels, and other accessories. Easy to Use: This angle grinder quick release nut has a quick release locking structure that can be tightened very firmly and is not easy to loosen. It can be tightened or loosened without using a wrench. The operating procedure is very simple and quick. Compatibility: Suitable for most angle grinders available on the market, and for most types of diamond cutting discs, grinding discs, grinding wheels, diamond plates, etc. Note: Please check the nut before use to ensure that it is not defective or damaged. Quick Clamping Flange/Quick Lock/M 14 Quick Release Nut for All Angle Grinders, Angle Grinder - Accessories for Quick Fixing and Loosening Features: Material: Made of steel, more durable. Quick Fixing: Quick clamping flange thread for quick fixing and loosening of circular saw blade, cutting wheel and other grinding accessories. Function: Thanks to the quick clamping flange, the accessories Angle grinder nuts can be easily fixed and loosened without tools. Applicable tools: Used for angle grinders, cutting machines, etc. Features: Self-locking function, saving time when tightening. Specifications: Material: Steel. Color: Silver. Dimensions: About 50mm. Pieces: 1pc Package Included: 1 Set Flange Nut Tool. Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2cm error due to manual measurement.