[Practical] Adjustable knurled bolts are made of large screws with washers that are difficult to remove.to loosen.Given the difficulty ofIn addition to manual tightening, the large screw adds a hexagonal hole (M6), which makes disassembly and assembly easier and more flexible. [Adjustable angle] The wrenchThe angle grinder is adjustable.You can adjust the size by turning the nut.The adjustable distance is 10 to 100 degrees.46mm. [Sturdy and durable] The thickness of the cylinder is 4.8mm, which is not easy to wear.slide or slideto break.It can better close the sliding claw and the wheel.thread.The thickness of the bottom plate is 3.2mm, so you can loosen or tighten the wheel more easily.screw with a wrench. [No interference] The back of the button is tiltedergonomically.The screw is flat, so there is no interference problem, and the grinding wheel can be disassembled faster, which is practical and beautiful. [Wide applications] Suitable for changing various types of angle grinders, desktop grinders, chamferers and marble grinding wheels.This keyis all-powerful!