日本三豐MITUTOYO數顯外徑千分尺293系列編號........................................測量范圍/分辨率..................................備.....注293-240.....................................0-25mmX0.001mm.......................-------293-241.....................................25-50mmX0.001mm.....................-------293-242.....................................50-75mmX0.001mm.....................-------293-243.....................................75-100mmX0.001mm...................-------293-340.....................................0-25mmX0.001mm/0.00005 .......-------293-341.....................................25-50mmX0.001mm/0.00005 .....-------293-342.....................................50-75mmX0.001mm/0.00005 .....-------293-343.....................................75-100mmX0.001mm/0.00005 ...-------一、特點：1）有特價，基本功能齊全。2）防水防油功能。3）任意處清零。4）帶鎖定裝置。