Combination Wrench Set Alloy Steel Chrome Number of Tools 30 Range of Head Sizes 1/4 in to 1 in 8 mm to 22 mm Head Offset Angle 15 Degrees Standard Tray SAE/Metric 1/4 in 9/32 in 5/16 in 8 mm 11/32 in 9 mm 3/8 in 10 mm 11 mm 7/16 in 12 mm 1/2 in 13 mm 14 mm 9/16 in 15 mm 5/8 in 16 mm 17 mm 11/16 in 18 mm 19 mm 3/4 in 20 mm 13/16 in 21 mm 22 mm 7/8 in 15/16 in 1 in Hex Opening Angle (Deg.) 15 Degrees