Features DURABLE STAINLESS STEEL: Metric imperial screw gauge is made of stainless steel material, strong, wear resistant, durable, corrosion resistant LOCKING DEVICE TO CHECK: Come with locking device, usually used to check whether the thread size is correct, more reliable WIDE APPLICABLE: 52 pieces of metric and inch specifications, possess wide application range, can measure various common screw thread specifications LASER SCALE: Adopt laser engraved scale, safe and reliable, does not damage the surface of the workpiece, does not deform the material, and has high processing accuracy USEFUL AND HELPFUL: Useful to check the tool angle when cutting threads on a metal lathe, check the angle on the thread cutting tool on the V groove of the gauge Specification: Item Type: Metric Imperial Screw Gauge Material: Stainless steel Scale: Laser engraving Purpose: To detect the specifications of thread Metric 60 Degree Thread: 0.25, 0.30, 0.35, 0.40, 0.45, 0.50, 0.60, 0.70, 0.75, 0.80, 0.90, 1.00, 1.25, 1.50, 1.75, 2.00, 2.50, 3.00, 3.50, 4.00, 4.5, 05.00, 5.50, 6.00MM Imperial 55 Degree Thread Specification: 4, 4-1/2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18, 19, 20, 22, 24, 25, 26, 28, 30, 32, 36, 40, 48, 60, 62G Package List:1 x Metric Imperial Screw Gauge Package List 1 x Metric Imperial Screw Gauge