Proto J5441r8mm 1/2" Drive Advanced Hex Bit Socket Set 11mm Thru 19mm

Advanced Hex Bit Sockets engage both the rounds and corners of the fasteners pulling them inward to help maintain the integrity of fastener. sizes included are 11MM, 12MM, 13MM, 14MM, 15MM, 16MM, 17MM, 18MM, 19MM and socket rail.