- Dolan Springs, Arizona, United States
- US $42.00
- Apr 23rd
This 1" npt 11-1/2 pitch tap has never cut a thread, it was purchased several years ago for a project that did not happen and has spent it's entire life resting in a machinist tool box. NOTE: only taps marked HS or HSS are made of the highest quality hardened tool steel, -- even some quality names like Rigid sell taps for 'hand use' -- meaning to chase existing threads, or a limited life span cutting threads. Drive head is .840 square, overall length is 3.75 &n