180168 Irwin Industrial Tool Co 9439 7/16 x 14, National Course Thread, 1 Hexagon Fractional Die, Carbon Steel, Ideal For Routine Maintenance, Repair Work For Rethreading Where High Accuracy Tolerance Thread Is Not Critical, Recommended For Use With Hexagon Die Stock, Die Can Be Used With A Wrench Or Socket When Space Is Limited, Designed For Hand Threading Work In A Variety Of Materials.
