Thread Pitch Gauge Set Included Thread Pitch - mm 0.05 mm 0.75 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 6 mm Included Threads per Inch 4 TPI 6 TPI 8 TPI 10 TPI 11 TPI 11 1/2 TPI 12 TPI 13 TPI 20 TPI 28 TPI 32 TPI 40 TPI 56 TPI Maximum Thread Pitch - mm 56 Maximum TPI 6 mm Minimum Thread Pitch - mm 4 Minimum TPI 0.05 mm Number of Leaves 28 Thread Angle 60 Degrees Thread Type Metric Gauge Material Steel Locking Device Yes