Upgrade your angle grinder with this M14 quick-release self-locking flange nut system. This precision-engineered pressing plate measures 44.72mm in diameter with an 11.38mm center bore and 9.1mm thickness, providing a secure fit for your grinding discs. The innovative quick-release mechanism allows for tool-free disc changes while maintaining maximum stability during operation. The durable metal construction features a silver finish and clear directional markings for proper installation. Perfect for professional contractors and DIY enthusiasts alike, this self-locking system eliminates the need for spanner wrenches, saving valuable time during disc replacements. Compatible with standard M14 thread angle grinders, this flange nut set ensures consistent performance and reliable disc mounting for all your grinding, cutting, and polishing tasks.