Vintage Greenfield Guided Die Stock And Tap Wrench
Verify with the pictures, but I'm seeing 7/16-14 on the die. I have two of these cleaned up, and listed separately in other sizes. Those two still work great. I'm just trying to make space. Didn't ever need this size. These big die stocks take up a lot of room in a small shop. The guided feature is pretty handy as well.