Thread Pitch Gauge Set, Included Thread Pitch - mm 0.4 mm, 0.5 mm, 0.7 mm, 0.75 mm, 0.8 mm, 0.9 mm, 1 mm, 1.25 mm, 1.5 mm, 1.75 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, Maximum TPI 7 mm, Minimum TPI 0.4 mm, Number of Leaves 21, Thread Angle 60 Degrees , Thread Type Metric, Gauge Material Steel, Locking Device Yes