螺距规 188系列特点：各量块上都标有螺距公制型螺距规、统一标准型螺距规、惠氏螺距规三种螺距规可供选择性能参数公制型螺距规测量范围货号组合0.35-6mm188-1300.35,0.4,0.45,0.5,0.6,0.7,0.75,0.8,1,1.25,1.5(22片) 1.75,2,2.5,3,3.5,4,4.5,5,5.5,6mm与60度量块0.4-7mm188-1220.4,0.5,0.7,0.75,0.8,0.9,1,1.25,1.5,1.75,2,2.5(21片) 3,3.5,4,4.5,5,5.5,6,6.5,7mm0.4-7mm188-1210.4,0.5,0.75,1,1.25,1.5,1.75,2,2.5(18片) 3,3.5,4,4.5,5,5.5,6,6.5,7mm统一标准型螺距规 测量范围货号组合4-42TPI188-1114,4/2,5,5/2,6,7,8,9,10,11,11/2,12,13,14,15,15(30片) 18,20,22,24,26,27,28,30,32,34,36,38,40,42TPI惠氏螺距规 测量范围货号组合4-42TPI188-1014,4/2,5,5/2,6,7,8,9,10,11,11/2,12,13,14,15,15(30片) 18,20,22,24,26,27,28,30,32,34,36,38,40,42TPI4-60TPI188-1024,4/2,5,6,7,8,9,10,11,11/2,12,13,14,16,18(28片) 19,20,22,24,25,26,28,30,32,34,36,40,48,60TPI