✔ This is a piston stop for service that requires holding the crankshaft in place.
✔ It can be used for clutch service or removing the flywheel nut or maintenance sheet fans.
✔ Just screw this tool into place and lightly snug down.
✔ Rotate the engine clockwise or counterclockwise until you feel that the piston is against the tool and you are ready to do your job. Remember that most saws have a left hand thread on the clutch side.
✔ The end is machined to a full radius to prevent damage to the top of the piston.
