Features:*100% brand new high quality*Suitable for 14mm spindle thread.*Innovative design, unique self-locking structure, rotating by hand, tighten the grinding disc more powerfully*Easy to use: The angle grinder quick release nut has a quick release structure that can be tightened very firmly and is not easy to loosen. It can be tightened or loosened without a wrench. The process of using it is very easy and quick.*Suit for:For example diamond cutting disks, grinding wheels, cup-shaped grinding wheels, diamond plates and other types of grinding wheels, etc. with a 1200W speed of 11000r/min and a polishing disc diameter of 115/125/150/180/230Specifications:*Quick use without tools*Thread Model: M14*Material: 45#Steel*Diameter: 46-50 mm*Height: 13mm*Top Self-locking Pressure Plate Thickness: 13mmPackage Contents:1pc / 2pcs/3pcsFlange Nut Set ToolsNote:1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.