Description
Precise Thread Triangles – TT-60
- Thread Triangles quickly measure pitch diameter of all 60 degree threads from 4 to 80 pitch, standard and special
- Instantly classifies thread as 2, 2a, 3a
- No complicated formulas to figure! For any standard thread refer directly to chart. For special threads just add 2 numbers.
- Convenient Neo-Prene holders, fit any make micrometer spindle
- Thread Triangles nest well into the “V” of the thread instead of making just point contact
- Micrometer rests on two parallel flat surfaces for better feel
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