Stainless Steel Thread Gauge Tool, Screw Gauge with 52 Blades, Center Gauge for 55° and 60° Pitch (Metric + Imperial)

【SIZE】: Metric (mm) 60° + Whitworth-55°, thread gauge 【QUANTITY】: Metric (mm) 60° thread pitch gauge, 24 pcs. Whitworth - 55°, 28 pcs center gag blades. 【ACCURATE MEASUREMENT】: The toothed edges are clearly marked. The numbers are precise and easy to read. 【USES】: Generally used to check that the internal and external thread size of the screw and the tooth pitch are correct, for grinding and positioning the threading tool on a lathe. 【EASY TO USE】: Screw gauge designed with a hole at each end, freely adjustable from where you press on the gauge teeth, easily rotating the threading blades.