Mitutoyo Bore Gage Extension Rod This 3.94" Extension Rod will help you reach deeper into bores for measurements with the following Mitutoyo Gages... Mitutoyo Borematic Mitutoyo Holtest Specifications... 100mm / 3.94" in Length Note: Mitutoyo does not recommend using more than 2 extension rods with 1 gage. For use with 0.275" - 0.500" / 6-12mm Mitutoyo Bore Gages only.
