Forsage piston ring compressor 3":

* Made of spring steel for maximum strength, corrosion resistance life and durable.
* Used for compressing piston rings, when installing pistons in engine cylinders. Holds piston rings securely, easy to install into cylinder.
* Unique dispatch shape prevents slipping into the cylinder. Simplified diameter adjustment with adjustment screw.
* Use an oil lubrication (not included) on ring and piston before compressing; Place piston inside the cylinder, tighten the compressor, lightly tap the piston into the bore with a rubber mallet (not included) while holding downward pressure on compressor.
* Piston ring holder 3" (height 75mm, working range 50-125mm).