Wright Tool 378 3/8" Dr., 10 Pc. 12 Pt. Std. Socket Set. Wright 378

The Wright 378 Set includes: 

3110 5/16"
3112 3/8"
3114 7/16"
3116 1/2"
3118 9/16"
3120 5/8"
3122 11/16"
3124 3/4"
3126 13/16"
3128 7/8"
W010    Rail
W3      10 Clips

The Patented Wright Drive® 12-Pt. Design
Not just a modification, but an entirely new tool design. The Wright Drive 12-point design distributes contact stress evenly over a larger contact area and away from the fastener corners. The result is ten times more socket-to-fastener contact area than conventional sockets. This design also increases leverage while decreasing rounding and distortion of fasteners. Patented #4,882,957.

Made Entirely in the U.S.A.
From the design and engineering to the forging and finishing, all work on Wright tools is performed in the United States by skilled American workers. We do not use foreign blanks or forgings. Even the steel we use is American-made.

Hot-Forge Process
Wright Tool uses four different hot-forging processes. All tools are forged using tough 4140 alloy steel. Hot-forging gives our products excellent grain flow for higher toughness, longer wear and better reliability than cold-formed tools.