Description
- 48 pieces 16 different sizes for all 60 threads.
- Measures all threads from 3 to 48 threads per inch and all metric from 0.5mm to 6mm pitch.
- 3 wire method of measuring external threads.
- Wires are fitted in a plastic case stamped with sizes.
- Laminated chart complied from the U.S. Standard Handbook H.28 gives proper sizes & measurements over wires.