GearWrench 85999 13-piece XL Gear Box Double Box End metric ratcheting wrench set consists of 1 of each 5/16", 11/32", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16" 7/8", 15/16 and 1" XL gearbox ratcheting wrenches. Ratcheting box end need as little as 5 degrees to move the fastener as opposed to 3 degrees for standard box end wrenches. The standard box end combined with the long pattern length gives this wrench excellent torque capabilities to break a stubborn, rusted fastener. The ratcheting box end then makes the loosening or tightening of the fastener fast and safe. The box end features improved box end strength from GearWrench's Off-Corner Loading and at the same time, reduces fastener rounding. The double box end ratcheting wrenches are made from the finest chrome vanadium steel for precision long-lasting tool life. Comes with a blow-molded carrying case that can be hung on a wall or keep your wrenches organized in your toolbox or rollaway