*Note: In some cases, it is possible to buy the bore gage without an indicator. In those cases, the protective plastic housing is not included.
You may order online by selecting any linked model number above. Mitutoyo dial bore gage depth extensions Extension rods are not available for this series of bore gages. The standard measuring depth is 150 mm (about 6") not taking the handle into account. The handle is about 4" long and this could, under some circumstances, be added to the overall depth range. Check our brand comparison page for alternatives. Professional repair service is always available from Long Island Indicator Service (see page 30). - For replacement parts such as missing spacers and worn anvils, see page 72.
Manufacturer's Notes on Usage "The bore gage is a comparative measurement instrument. This gage cannot function or perform as a [direct] measurement instrument if used alone. Before using this bore gage, adjust the zero point by using a ring gage, micrometer, gauge block, bore gage zero checker, or other device manufactured for this purpose." [content edited] | 
