【详细介绍】 详细说明接杆式内径千分尺137系列-延长杆型/139系列-延长管型/140系列-延长管型特点：通过连接延长杆（延长管）有带有微分头的测砧可扩大测量范围测量面带有硬质合金头（也可选择测量面不带硬质合金头的137经济型）139系列采用高耐磨性延长管140系列采用大直径延长管性能参数：精度137、139系列：±（3＋n＋L/50)um[±(.00015＋.00005n＋.00005(L/2))″]140系列：±（7＋n＋L/50)um[±(.0003＋.00005n＋.00005(L/2))″]公制型延长管型测量范围货号分度值测头行程延长管100-125mm139-0010.01mm25mm——100-500mm139-1730.01mm25mm25mm,50mm,100mm,200mm100-900mm139-1740.01mm25mm25mm,50mm,100mm,200mm,400mm100-1300mm139-1750.01mm25mm25mm,50mm,100mm,200mm,400mm(2个)100-1700mm139-1760.01mm25mm25mm,50mm,100mm,200mm,400mm(3个)100-2100mm139-1770.01mm25mm25mm,50mm,100mm,200mm,400mm(4个)英制型延长管型测量范围货号分度值测头行程延长管4"-5"139-002.001"1"——4"-20"139-178.001"1"1",2",4",8"4"-36"139-179.001"1"1",2",4",8",16"4"-52"139-180.001"1"1",2",4",8",16"(2个)4"-68"139-181.001"1"1",2",4",8",16"(3个)4"-84"139-182.001"1"1",2",4",8",16"(4个)公制型延长管型测量范围货号分度值测头行程延长管1000-2000mm140-1570.01mm50mm50mm,100mm(2个),200mm,500mm1000-3000mm140-1580.01mm50mm50mm,100mm(2个),200mm,500mm,1000mm1000-4000mm140-1590.01mm50mm50mm,100mm(2个),200mm,500mm,1000mm(2个)1000-5000mm140-1600.01mm50mm50mm,100mm(2个),200mm,500mm,1000mm(3个)英制型延长管型测量范围货号分度值测头行程延长管40"-80"140-161.001"2"2",4"(2个),8",20"40"-120"140-162.001"2"2",4"(2个),8",20",40"40"-160"140-163.001"2"2",4"(2个),8",20",40"(2个)40"-200"140-164.001"2"2",4"(2个),8",20",40"(3个)