•Suitable for use on a wide range of OHV, OHC and CVH engines.
•Permits valve springs and valve stem oil seals to be replaced without need to remove the cylinder head when used in conjunction with compressed air adaptor.
•Reversible jaw adaptor and automatic cam action lock to pre-set spring tension. 

•Suitable for use on a wide range of OHV, OHC and CVH engines.
•Permits valve springs and valve stem oil seals to be replaced without need to remove the cylinder head when used in conjunction with compressed air adaptor.
•Reversible jaw adaptor and automatic cam action lock to pre-set spring tension.