产 品 说 明日本三丰MITUTOYO背测式百分表编号..........................测量范围/分辨和率..........................备...注1960.......................................0-1X0.01mm.......................标准型1160.......................................0-5X0.01mm.......................标准型2960F.....................................0-1X0.01mm.......................防尘型2990.......................................0-0.1X0.001mm..................标准型1180-6....................................0-5X0.01mm.......................标准型附6mm手柄1180-8....................................0-5X0.01mm.......................标准型附8mm手柄一、特点：1）背面装有测量心轴，可达到和其它千分表一样的精度的耐久度，且安装固定杆选件后，操作性能更加明显、方便。