Check the listing for details. M14 Angle Grinder Quick Release Self-Locking Grinder Pressing Plate Flange Nut. Color: As shown, Condition: New, Made in United States. Listed at 4.09 USD. Improve Grinding Efficiency: The universal M14 galvanized grinder pressure plate is designed to improve the efficiency of grinding by providing a stable and secure grip on the workpiece. Versatile Application: This pressure plate is compatible with- most M14 grinders and can be used for diamond cutting disks, grinding wheels, cup-shaped grinding wheels, diamond plates and other types of grinding wheels, etc.