55 blades in a handy holder with tightening screws. Suitable for measuring metric and UNC threads. Manufactured from 45 steel for a long lasting gauge.
| Metric thread gauges: | 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.6, 0.7, 0.75, 0.8, 0.9, 1.0, 1.25, 1.5, 1.75, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0 |
| UNC thread gauges: | 4, 4-1/2, 5, 5-1/2, 6, 7, 8, 9, 10, 11, 11 ½, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36, 38, 40, 42 |