BATC ST25001-02 Valve Spring Compressor ReviewbP PP ATC ST25001-02 Valve Spring Compressor PLength pressure screw 70mm, 110mm, 120mm, "C" ClampPIncludes Driving Adaptors: 16mm, 19mm, 23mm, 25mm, 30mmPPantograph-type levers ensure a consistent coaxial contact with the valvePThese tools are designed to compress and relesase valve spring after removing the collectsP