A Triumph Twist Drill Co. carbon steel bottom tap cutting a 9/16-18 thread, used to cut threads all the way to the bottom of a blind hole for gunsmithing work.
A Triumph Twist Drill Co. carbon steel bottom tap cutting a 9/16-18 thread, used to cut threads all the way to the bottom of a blind hole for gunsmithing work.
| UPC | 042526015496 |
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