螺距规优质钢材制成 每一叶片均标有螺纹规格适用于快速对比式测量工件的螺纹28片含ISO60 :0.25,0.3,0.35,0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.75,0.8,0.85,0.9,1.0,1.1,1.2,1.25,1.3,1.4,1.5,1.6,1.7,1.75,1.8,1.9,2.0,2.5mm 26片含Whit55 :4,4.5,5,6,7,8,9,10,11,12,13,14,16,18,19,20,22,24,25,26,28,30,32,40,48,60 52片含:ISO60 (24片):0.25,0.3,0.35,0.4,0.45,0.5,0.6,0.7,0.75,0.8,0.9,1.0,1.25,1.5,1.75,2.0,2.5,3.0,3.5,4.0,4.5,5.0,5.5,6.0mmWhit55 (28片):4,4.5,5,6,7,8,9,10,11,12,13,14,16,18,