Functionality: This piston stopper is designed to keep the crankshaft secure, ideal for clutch repairs, flywheel nut removals, and servicing lawn mowers and blowers.Easy to Use: To operate, simply remove the spark plug, screw the tool into place, and tighten lightly. The full radius end prevents piston top damage during use.Included Tools: The package includes one clutch removal tool set, ensuring you have the necessary equipment for various repair tasks.Convenient Size: Lightweight and easy to carry, this tool is perfect for DIY enthusiasts who perform their own saw or cycle maintenance.Durability: Made from high-quality metal materials, this piston stopper is wear-resistant and strong, ensuring it lasts through frequent use.