pliers
apex tool group kd1723 piston ring compressor
the piston ring compressor is used to install pistons on truck and tractors made of quality construction with spring steel wrap and ratchet action tension mechanism this provides the quality and safety needed when installing pistons use to install pistons 3 1 2 to 6 1 2 in diameter positive lock action provides positive compression and fingertip release heavy spring steel compresses the stiffest rings evenly tool is beaded along the lower edge to prevent compressor from entering the cylinder supplied with a steel key sku eglt16947