<p>Overhead Valve Spring Compressor. Suitable for use on a wide range of OHV, OHC and CVH engines. Not suitable for use on engines with deep seated valves. Allows valve spring and valve stem oil seal to be replaced with the cylinder head.</p><br/><h3>Product Features</h3><br/><ul><br/><li>Reversible jaw adaptor</li><br/><li>Automatic cam-action locking to a predetermined setting</li><br/></ul>