Screw Pitch Gage, Inch 51 Leaves, PEC

- Screw pitch gage with 51 leaves
- Measures 60° threads from 4 - 84 TPI
- Each blade clearly marked with thread size
- Blades are protected in sturdy steel case
- Locking device for each set of leaves
Screw pitch gage made in the US by Products Engineering Corporation (PEC).
The correct pitch is determined by engaging the blade teeth with the threads you are measuring.
This screw pitch gage measures the following screw pitches:
Leave Sizes: 4, 4-1/2, 5, 5-1/2, 6, 7, 8, 9, 10, 11, 11-1/2, 12, 13, 14, 15, 16, 18 threads per inch (TPI)
Leave Sizes: 20, 22, 24, 26, 27, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50 threads per inch (TPI)
Leave Sizes: 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84 threads per inch (TPI)
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