Inch & Metric Thread Detective Identifiers

~ Nut and bolt thread identifiers. ~ Each size has a nut and bolt checker on the same gauge. ~ Thread sizes are etched on each gauge. ~ The individual gauges rotate freely on the wire cable for fast thread verification. ~ Gages are on a convenient wire cable with a loop to hang on a hook. ~ The inch nut and bolt sizes on the first cable include #6-32, #8-32, #10-32, #10-24, 1/4-28, 1/4-20, 5/16-24, 5/16-18, 3/8-24, 3/8-16, 7/16-20, 7/16-14, 1/2-20 & 1/2-13. ~ The metric nut and bolt sizes on the second cable include M4 x 0.7, M5 x 0.8, M6 x 1.0, M7 x 1.0, M8 x 1.0, M8 x 1.25, M10 x 1.0, M10 x 1.25, M10 x 1.50, M12 x 1.25, M12 x 1.50 & M12 x 1.75.