TEKTON 3/8 in. Drive 12-Point Socket Set (15-Piece)

12-point socket openings are an exact fit for double hex fasteners. They also offer mulitple positions for engaging square and hex fasteners, which is especially helpful when access is limited. The socket opening's radiused corners prevent round-off by gripping fasteners on their flat sides, and not their corners. Die-stamped markings are permanently impressed into the steel and can't wear off. They're designed with large, clear size numbers that are easy to read even in low light settings. The polished chrome plating protects against corrosion and wipes clean to a mirror finish. The deepest parts of the socket well, where nickel and chrome layers cannot be deposited in sufficient thickness, are protected with an additional thin layer of clear coat, rather than conventionally-used silver paint, to prevent rust. Four detent grooves provide a secure connection with the retaining ball of a drive tool. Radiused corners reinforce the drive end by eliminating sharp angles that are prone to cracking under stress....