Universal Valve Spring Compressor Dual Cam Removal Tool OHC OHV CVH Engine Item Features: Plastic coated locking handles to keep valve springs positively compressed during work. For use on multi-valve and diesel engines with deep seated valves and on many OHC/OHV petrol/diesel engines. Unique dual cam action provides choice of operation either above or below valve. CAPACITY: 55-175mm Throat Clearance 10" (250mm) Reversible Jaw/Adaptor