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.