三豐外徑千分尺
特點墨綠色的光滑烤漆架
測量面帶有硬質合金頭
光滑的鍍鉻面上有清晰的刻度
帶有鎖緊夾鉗
棘輪鎖定裝置或摩擦套管可精桷的重復
帶有一個基準桿（不包括25mm（1"）型）
| 性能參數 | |||
| 公制型─帶有棘輪鎖定裝置 | |||
| 測量范圍 | 貨 號 | 分度值 | 精 度 |
| 0-25mm | 103-137 | 0.01mm | &plun;2μm |
| 103-129 | 0.001mm | &plun;2μm | |
| 25-50mm | 103-138 | 0.01mm | &plun;2μm |
| 103-130 | 0.001mm | &plun;2μm | |
| 50-75mm | 103-139-10 | 0.01mm | &plun;2μm |
| 75-100mm | 103-140-10 | 0.01mm | &plun;3μm |
| 100-125mm | 103-141-10 | 0.01mm | &plun;3μm |
| 125-150mm | 103-142-10 | 0.01mm | &plun;3μm |
| 150-175mm | 103-143-10 | 0.01mm | &plun;4μm |
| 175-200mm | 103-144-10 | 0.01mm | &plun;4μm |
| 200-225mm | 103-145-10 | 0.01mm | &plun;4μm |
| 225-250mm | 103-146-10 | 0.01mm | &plun;5μm |
| 250-275mm | 103-147-10 | 0.01mm | &plun;5μm |
| 275-300mm | 103-148-10 | 0.01mm | &plun;5μm |
| 300-325mm | 103-149 | 0.01mm | &plun;6μm |
| 325-350mm | 103-150 | 0.01mm | &plun;6μm |
| 350-375mm | 103-151 | 0.01mm | &plun;6μm |
| 375-400mm | 293-152 | 0.01mm | &plun;7μm |
| 400-425mm | 103-153 | 0.01mm | &plun;7μm |
| 425-450mm | 103-154 | 0.01mm | &plun;7μm |
| 450-475mm | 103-155 | 0.01mm | &plun;8μm |
| 475-500mm | 103-156 | 0.01mm | &plun;8μm |
| 英制型─帶有棘輪鎖定裝置 | |||
| 測量范圍 | 貨 號 | 分度值 | 精 度 |
| 0-1" | 103-177 | .001" | &plun;.0001" |
| 103-131 | .0001" | &plun;.0001" | |
| 1"-2" | 103-178 | .001" | &plun;.0001" |
| 103-132 | .0001" | &plun;.0001" | |
| 2"-3" | 103-179 | .001" | &plun;.0001" |
| 3"-4" | 103-180 | .001" | &plun;.00015" |
| 4"-5" | 103-181 | .001" | &plun;.00015" |
| 5"-6" | 103-182 | .001" | &plun;.00015" |
| 6"-7" | 103-183 | .001" | &plun;.0002" |
| 7"-8" | 103-184 | .001" | &plun;.0002" |
| 8"-9" | 103-185 | .001" | &plun;.0002" |
| 9"-10" | 103-186 | .001" | &plun;.00025" |
| 10"-11" | 103-187 | .001" | &plun;.00025" |
| 11"-12" | 103-188 | .001" | &plun;.00025" |
| 12"-13" | 103-189 | .001" | &plun;.0003" |
| 13"-14" | 103-190 | .001" | &plun;.0003" |
| 14"-15" | 103-191 | .001" | &plun;.0003" |
| 15"-16" | 103-192 | .001" | &plun;.00035" |
| 16"-17" | 103-193 | .001" | &plun;.00035" |
| 17"-18" | 103-194 | .001" | &plun;.00035" |
| 18"-19" | 103-195 | .001" | &plun;.0004" |
| 19"-20" | 103-196 | .001" | &plun;.0004" |
| 公制型─帶有摩擦套管 | |||
| 測量范圍 | 貨 號 | 分度值 | 精 度 |
| 0-25mm | 103-125 | 0.01mm | &plun;2μm |
| 103-133 | 0.001mm | &plun;2μm | |
| 25-50mm | 103-126 | 0.01mm | &plun;2μm |
| 英制型─帶有摩擦套管 | |||
| 測量范圍 | 貨 號 | 分度值 | 精 度 |
| 0-1" | 103-127 | .001" | &plun;.0001" |
| 103-135T | .0001" | &plun;.0001" | |
| 1"-2" | 103-128 | .001" | &plun;.0001" |
| | 103-136T | .0001" | &plun;.0001" |
