Screw Pitch Gauge;Fit for : Metric 60 Degree /Whitworth 55 Degree Pitch Range : Metric:0.25,0.3,0.35,0.4,0.45,0.5,0.6,0.7,0.75,0.8,0.9,1.0, 1.25,1.5,1.75,2.0,2.5,3.0,3.5,4.0,4.5,5.0,5.5,6.0 Whitworth: 4G,4-1/2G,5G,6G,7G,8G,9G,10G,11G,12G,13G,14G,16G,18G,19G,20G, 22G, 24G, 25G, 26G, 28G, 30G, 32G, 36G, 40G, 48G, 60G, 62G;Material : Metal Size(Closed) : 67x 22x 14mm / 2.6" x 0.87" x 0.55"(L*W*T);