5/16"-40 UNS X 1" OD HSS Round Adjustable Die Tekton We make our service wrenches

We make our service wrenches from 4140 chromium molybdenum steel and harden them to 50–53 HRC

External Thread: 7/8"-9

Tekton shallow impact sockets have two size markings—both a high-visibility laser marking and a permanent stamped marking

Part Number: BIT-DMS04-1065

5/16"-40 UNS X 1" OD HSS Round Adjustable Die Tekton We make our service wrenchesProduct Description HSS Round Dies are for use in making new threads or re threading existing threads. They are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Round dies are chamfered on both faces, one side has a 2 to 3 thread chamfer for threading and the other side has a 1 to 1 1 2 thread chamfer for threading close to a shoulder. Adjustments are made by a fine pitch screw which