英制／公制型             數顯型

 測量范圍            貨號            精度            備注
                 573-242-20                  刀刃型，可測量最小孔徑：
 .4 " - 8"                     ±.002"                              o.4 "
                 573-245-20                  內凹槽型，可測量最小孔徑：
 .4 " - 6"                     ±.002"                                o.4 "
                 573-246-20                  尖爪型，可測量最小孔徑：
 .8" - 6"                      ±.0015"                             o.8"

  公制型                                                                                                              直徑大于o20

 測量范圍            貨號            精度            備注
                 536-142                     刀刃型，可測量最小孔徑：
 10 - 200mm                    ±0.12mm                             o10mm
                 536-145                     內凹槽型，可測量最小孔徑：
 10 - 150mm                    ±0.05mm                               o10mm
                 536-146                     尖爪型，可測量最小孔徑：
 20 - 150mm                    ±0.05mm                             o20mm
                 536-147                     尖爪型，可測量最小孔徑：
 30 - 300mm                    ±0.08mm                             o30mm
                 536-148                     尖爪型，可測量最小孔徑：
 70 - 450mm                    ±0.10mm                             o70mm
                 536-149                     尖爪型，可測量最小孔徑：
 70 - 600mm                    ±0.12mm                             o70mm