High-density polyethylene case withstands common lubricants, fuels, and solvents, Sockets work for both types of anvils found on 1/2 inch drive impact wrenches, Provides an exact fit for hex fasteners, Each socket size meets a minimum of 1.3 times the ANSI/ASME standard for proof torque, There are no published ASME standards for 5/16 in., 11/32 in., 8 mm, 37 mm, and 38 mm impact sockets in 1/2 inch drive.
