Features:* 100% brand new high quality * Suitable for 14mm spindle thread.* Innovative design, unique self-locking structure, rotating by hand, tighten the grinding wheel more tightly * Easy to use: The quick release nut of the angle grinder has a quick release structure, which can be tightened very tightly and not easy to loosen. It can be tightened or loosened without a wrench. The process of using it is very easy and fast.* Suit for: for example, cutting diamond discs, grinding wheels, cup-shaped grinding wheels, diamond plates and other types of grinding wheels, etc. with 1200W speed 11000r/min and 115/125/150/180/230 diameter polishing wheelSpecifications:* Size: as pictures show* Thread model: M14* Diameter: 50mm (as pictures show)Top self-locking pressure plate thickness: 9.5mm (approx)* Color: as pictures showPackage contents:1 * Self-locking pressure plate Note: 1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors, such as monitor brightness and light brightness. 2. Please allow slight manual measurement deviation for the data.