<h3>Key features</h3><ul> <li>This is a set of split bushing converters for multiple purposes of chuck or collet sutability. .</li> <li>High precision, tight and stable clamping offer much convenience of workings.</li> <li>High precision, tight and stable clamping offer much convenience of workings.</li> <li>Comes with 9 pieces of various sizes of adapters, so they are applicable to different specifications of the bit tool and chuck.</li> <li>Suitable for engraving machine, wood router. A perfect woodworking tool.</li> </ul><p>Free shipping included. 30-day hassle-free returns.</p>