Screw Thread Gauge Tool,52 Pcs Stainless Steel 60°/55° Metric and Imperial,Screw Gauge Measuring Tool,Pitch Cutting Gauge Tool Set, Feeler Gauges Metric Specification of Screw Thread Gauge Tool Material:Stainless Steel Color:Silver Standard:Metric and Whitworth Quantity: 52 pcs Weight:60g Package Include:1*Pitch Cutting Gauge Tool Measuring Range: Whitworth - 55°: 4G、4 1/2G、5G、6G、7G、8G、9G、10G、11G、12G、13G、14G、16G、18G、19G、20G、22G、24G、28、25G 30G、32G、36G、40G、48G、60G、62G 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. Feature of Screw Pitch Gauge: ---Foldable threaded gauges for easy storage, small enough to take up no more of your valuable space ---The pitch gauge accurately measures internal and external screw threads,a great measuring tool for your working. ---52 Blades Metric and Whitworth 55/60 Degree Thread Measuring Gauge Screw Pitch Stainless Steel Measuring Tools. --- Thread measuring gage is using rotary switch, which can be freely adjusted. Warm Note: 1.Please allow little color difference due to different camera or light environment. 2.0-1in error of measuring is a reasonable range due to different measurement methods.