Mitutoyo inside Micrometer Head interchangeable Rod Type needs 04GAA285 anvil and 303341 nut for 50 63mm Micrometer 88 70 they provide high excursion with SHPSB140 they provide high excursion with minimal distortion The XT401000 s keyless chuck design makes installing accessories and changing bits a seamless process 141 025 Mitutoyo Inside Micrometer Head Interchangeable Rod Type (needs 04GAA285 anvil and 303341 nut for 50 63mm Micrometer) Wide range of inside measurements possible by combining extension rods and anvils with the measuring heads The sleeve is rotated to adjust the index line position when setting to a length standard Code: 141 025