Mitutoyo Tubular Inside Micrometer Wide range of ID measurements by combining extension pipes and anvils with the micrometer head. Features include... 1.5" - 12" Measuring Range 0-.5" Micrometer Head Travel 0.001" Graduations Supplied in fitted wooden case Includes the following pipes... 0.5", 1", 2", 2.5", 3", 3.5", 4", 6"