Piston Ring Compressor

The Piston Ring Installer is designed to compress rings onto pistons between 2" and 5" in diameter. Features a ratcheting lock mechanism with fingertip release lever. The nibs on the bottom prevent the compressor from sliding into the cylinder. Material: 0.3MM 65Mn Steel Belt Self Locking Ratchet Pawl With 1pc L Wrench 6.4mm Square