Flange Nuts Inner & Outer M14 Thread 2 Piece Set for Angle Grinders Metal Lock Nuts Product Description: Model: M14, Suitable for 14mm spindle thread 2 pieces inner and outer nut. Self-Locking Structure: Rotating by hand, tighten the grinding disc more powerfully. Convenient to Use: With a bottom pressure plate, which is more convenient to use. Application: Suit for angle grinders, cutting machines and more. A 1200W speed of 11000r/min and a polishing disc diameter of 125/150/180/230. Easy to Use: Allows for tool free disc change. Specifications: Type: Pressure Plate Material: Metal Color: As Picture Model: M14 Diameter: About 50mm/1.97inch Package Included: 1pc x Top Pressure Plate 1pc x Bottom Pressure Plate. Global Diamond Pros