Mitutoyo 188-121 Metric Screw Pitch Gauge 0.4-7mm

Thread pitch size is stamped on each gauge.
Composition of leaves: 0.4, 0.5, 0.75, 1, 1.25, 1.5, 1.75, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7mm (18 leaves).