<p>A combination wrench made of extremely <strong>high-strength cold drop forged CRV tool steel</strong>. The key has undergone a careful <strong>heat treatment process</strong>. Hardened in a vacuum oven and cooled in oil, it prevents decarbonation on the surface of the key. Then it is tempered <strong>at the right temperature</strong>, which in turn reduces the stresses arising during hardening, and thus <strong>significantly greater bending strength of the key.</strong></p><br/><p><strong>Perfectly protected against corrosion</strong> by nickel plating and matte satin coating.</p><br/><p>The flat head<strong> set at an angle of 15 &deg; and the ring head bent by 15 &deg;</strong> make it easy to use the key and unscrew in hard-to-reach places.</p><br/><p><strong>Product features</strong></p><br/><ul><br/><li>Brand: <strong>TVARDY</strong></li><br/><li>Size [mm]: <strong>12</strong></li><br/><li>Material: <strong>CRV cold forged steel</strong></li><br/><li>Meets <strong>DIN 3113-A standards</strong></li><br/><li>Has the German VPA GS certificate</li><br/><li>key subjected to a careful heat treatment process</li><br/><li>hardened in a vacuum furnace, quenched in a special hardening oil</li><br/><li>protected against corrosion by nickel plating and matte satin coating</li><br/></ul>