Extra Deep Alloy Steel 1-1/16" Socket Works on 30/36 Spring Brakes on 2016-2017 Freightliner Dump Trucks and Removes Other Types of Clamps and Bolts. The socket can be used with 1/2" drive and an impact wrench. The socket is forged from alloy steel and heat treated. Also works on other 1-1/16" deep applications.