Draper 08444 Piston Ring Compressor 50-175mm Height 4"

These piston ring compressors gently compress piston rings into position, reducing the risk of damage to components during installation. They are key operated with a ratchet mechanism and safety valve to allow secure rapid compression and control. Made from tempered spring steel, and complete with a steel tensioning key. Simple thumb release locking mechanism. Capacity 50-175mm (diameter).