Size: 3/4"Drive: 3/8"Depth: ShallowMaterial: Chrome Molybdenum Steel With Black Phosphate FinishSHOCKWAVE Impact Duty Rated For Extreme Impact Durability In High-Torque ApplicationsNon-Slip Hex Geometry To Prevent Rounding Of Fasteners And Provide Better GripDual-Hole Design And Ring Groove Allow For Easy Socket Attachment And RemovalStamped And Inked Markings For Easy IdentificationSix Points Offer More Surface Area In Contact With Hex Material To Be TurnedImpact Sockets Are Designed To Use With Power Tools, Such As An Impact Driver Or Impact Wrench