This 9pcs E-socket set is an easy to use, special purpose set for tightening & lossening of male headed TX fasteners. The set 9pcs of E Socket size E10-11-12-14-16-18-20-22-24. This set is very useful for automotive industry, service garage & can also use it for various DIY repair or maintenance projects. Made from high quality CRV steel, the pieces of the socket set will ensure the regular wear and tear and last you longer.