ΓΆ€ΒΆ For use on a wide range of OHV, OHC and CHV engines. ΓΆ€ΒΆ Not suitable for use on engines with deep seated valves. ΓΆ€ΒΆ Allow valve springs and valve stem oil seals to be replaced with the cylinder head. ΓΆ€ΒΆ Feature a reversible jaw/adaptor and automatic cam-action locking to a re-determined setting.