Type: Standard Length, Fractional/Metric, Hex. Drive End Size: 3/8 Inch. Minimum Bit Size: 3/16 Inch, 4 Millimeter. Maximum Bit Size: 1/2 Inch, 12 Millimeter.
Bit Sizes: 3/16 Inch, 7/32 Inch, 1/4 Inch, 5/16 Inch/8 Millimeter, 3/8 Inch, 7/16 Inch, 1/2 Inch, 4 Millimeter, 5 Millimeter, 6 Millimeter, 7 Millimeter, 10 Millimeter and 12 Millimeter.