This nut locking utility suitable for varieties of electric machines such as angle grinder, cutting machine, electric circular saws. With this tool, you can work more easily, come and have a try, it won't let you to fall. Features: Uni-que locking structure, new design, give you better using experience. Suitable for 1200W 11000r/min speed angle grinders and cutting machines and 125 polishing plate diameter, has wide application. This nuts require the M14 connection thread, please check before ordering. Made of fine steel material, has a long service life, so you don't need to change often. You can change it by yourself, which saves your time and money. Features: Material: 45# steel ∮D: 50mm Package size: 45 * 45 * 20mm / 1.8 * 1.8 * 0.8in Package weight: 110g / 3.9oz Packing list: 1 * M14 lock nut