SIZE: Metric (mm) 60+Whitworth-55 Thread Gauge QUANTITY: Metric (mm) 60 Thread Pitch Gauge24 Pcs. Whitworth - 55, 28 pcs center gag blades. PRECISE MEASUREMENT: Serrated edges are clearly marked. Numbers are accurate and easy to read. USES: Typically used for checking internal and external screw thread size and tooth pitch are correct, grinding and positioning tool thread on one turn. EASY TO USE: Screw gauge designed with a hole on each end, freely adjusted from where you press the tooth gauge, easily rotate the threading blades. Specification Type: Stainless Steel Threading Gauge Material: Stainless Steel Standard: Metric and Whitworth Quantity: 52 pcs Applicable: industrial measurement Features -It is useful to check the angle of the tool when cutting threads on a metal lathe. -Check the angle of the threading tool on the v-groove of the gauge. Metric (mm) - 60 6.0, 5.5, 5.0, 4.5, 4.0, 3.5. 3.0, 2.5, 2.0, 1.75, 1.5, 1 .25. 1.0, 0.9, 0.8, 0.75, 0.7, 0.6. 0.5, 0.45, 0.4, 0.35, 0.3, 0.25. Whitworth - 55 62G, 60G, 48G, 40G, 36G, 32G, 30G, 28G, 26G, 25G, 24G, 22G, 20G, 19G, 18G , 16G, 14G, 13G, 12G, 11G, 10G, 9G, 8G, 7G, 6G, 5G, 4 1/2G, 4G Package includes 1 x Thread Gauge Welcome to meet