Laser 0285 Piston Ring Compressor Product Overview This Piston Ring Compressor tool is necessary for the installation of pistons into the cylinder block. The compressor folds around the piston, holding the rings in their grooves and allowing the piston and ring assembly to slide into the bore without damaging the pistons or rings. Product Details Adjustable for pistons from 53mm to 125mm. For installing pistons into cylinder block. Key handle allows compressor to be tightened.
