XtremepowerUS 7PCs 3/8" Ball End Long 4.25" Standard SAE Hex Allen Bit Sockets Wrench Built In Hex Screw Allows For Resizing Of Bits Without Having To Replace The Bit Itself Drop Forged, S2 Chrome Vanadium Steel Ball Head Design Allows Turning Hard To Reach Fasteners From Up To A 30 Degree Angle Allows Full Torque And Leverage While Allowing Off Axis Rotation Includes 1/8", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8"