M4431B Car Yard Inspector Wrench

• Tightens air brake external nuts and cover screws
• Incorporates four 12-point sockets (3/4", 7/8", 15/16" and 1") plus a 9/16" open wrench all-in-one tool
• Box end portion of wrench is 10-3/8" long
• Open end portion of wrench is 6-1/4" long