1/4" Drive x 4mm Hex Bit Socket

Features * S2 steel bit is press-fit into the socket for a straight, permanent connection that can't loosen over time * 6-sided hexagonal tip is machined to precise tolerances for an exact fit with hex fasteners * Large, clear die-stamped size marking is easy to read and can't wear off * Four detent grooves provide a secure connection with the drive tool and a drilled through-hole allows locking on with retaining pin * Polished, chrome-plated finish easily wipes clean and is highly resistant to corrosion