468-980 Mitutoyo Digimatic Holtest 4 Head Set, 4"-8"Mitutoyo Digimatic Holtest Three Point Internal Micrometer Set The Mitutoyo Digimatic Holtest Three Point Internal Micrometer Set stands as a pinnacle of precision and durability. Boasting an interchangeable head set and titanium coated measuring pins, this micrometer set excels in resilience against water, dust, and coolant fluid splashes with its IP65 protection level. The large LCD display, featuring a 7. 5mm character height, ensures effortless