Mitutoyo 188-151 Metric and Unified (UNF) Screw Pitch Gauge 0.4-7mm/4-42 TPI

Thread pitch size is stamped on each gauge.
Composition of leaves Unified: 4, 4.1/2, 5, 5.1/2, 6, 7, 8, 9, 10, 11, 11.1/2, 12, 13 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36, 38, 40, 42 TPI.
Composition of leaves Metric: 0.4, 0.5, 0.7, 0.75, 0.8, 0.9, 1, 1.25, 1.5, 1.75, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7mm.
51 leaves in total.