Tip Size: 7/32" HexDrive: 3/8"Used To Drive Fasteners With Indented Hex Socket HeadHex Bits Are Forged Steel For Strength And DurabilitySocket Body Is Polished Chrome Vanadium SteelDirectTorque Technology To Prevent Rounding Of Fasteners And Provide Better GripKnurled Control Ring At Base To Facilitate Handling, Especially In Oily/Greasy ConditionsHard Stamped Markings For Easy Identification