51 Leaf 15432 TPI & 0.4-7.0mm 60 Deg. Metric and Unified Screw Pitch Gauge Asimeto Includes 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 11.5, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30-84 by 2 TPI Accuracy +/- 0.002\
51 Leaf 30773 TPI 60 Deg. Unified Screw Pitch Gauge Asimeto Includes 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 11.5, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30-84 by 2 TPI Accuracy +/- 0.0015\