Open End Wrench Set Alloy Steel Natural Number of Tools 14 Range of Head Sizes 5/16 in to 1 1/8 in 10 Degrees Insulated Yes Box SAE Single End Rounded Cushion Grip 3 29/32 in to 9 3/32 in Head Thickness 9/32 in 5/16 in 11/32 in 13/32 in 29/64 in 15/32 in 1/2 in