General description This Chainsaw Coupling Removal Tool is designed for easy maintenance of couplings and removal of flywheel nuts. It serves as a versatile piston stop tool, ensuring the crankshaft remains in place during operation. Technical specifications Item Type: Piston Stop Flywheel Disassembly Part Material: Iron Weight: Approx. 314g / 11.1oz Inner Diameter: 45mm / 1.8in Hole Diameter: 8mm / 0.3in Outer Diameter: 55mm / 2.2in Compatibility and accessories Suitable for: Electric Saws, Chain Saws, and Petrol Saws Package List: 1 x Instruction Manual, 1 x Chainsaw Coupling Removal Tool, 1 x Piston Stopper Installation Remove the spark plug. Screw the tool into place and tighten gently for hassle-free removal. Usage Turn the motor clockwise or counterclockwise until the piston is ready for repair. Note: Most chainsaws have left-hand threads on the coupling side.