Universal Piston Stop Chainsaw Parts Clutch Flywheel Removal ToolFeatures:It is a piston stop for handling that requires the crankshaft to be held in place. It can be used to service the clutch or remove flywheel nuts or service weeds and leaf blowers. Simply remove the spark plug and screw this tool into place and retract it slightly. The end is machined with a full radius to prevent damage to the top of the piston. Very easy to use and very useful to carry around if you are doing your own saw or other 2 work cycles. Specification:Condition: Color: Orange+BlackPackage Weight: Approx. 308gPackage Included:1*Clutch Removal Tool KitNote:1. We provide clear photos, measurements where possible. Check as much as you can to make sure the item is the one you need.2. Please allow 0.5-1 inch difference due to manual measurement. (1 inch = 2.54cm)3. There are no instructions in this kit. Professional installation is highly recommended!4. Turn the motor clockwise or counterclockwise until you feel the piston rise to the tool and you are ready to perform your services. Keep in mind that most chainsaws have a left hand thread on the clutch side.