The bolt extractor set is used to remove the remaining parts of broken， or too tightened， screws.<ul><li>Set of 6 pcs</li><li>Drive: 10 mm (3/8'')</li><li>Material: High-carbon steel 8660</li><li>Hardness: 49-52 HRC</li><li>Size: 2， 3， 4， 6， 8， 10 mm</li></ul><div id="descriptionImg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/4/K/401804UK/401804UK-1-YnKO.jpg" data-original="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/4/K/401804UK/401804UK-1-YnKO.jpg"></div>