This versatile and self-centering 3 point internal micrometer are designed to simplified the accurate and efficient measurment of internal diameter, either through hole or blind hole. Three carbide tipped anvils, evenly spaced at 120 degree apart, contact the internal wall surface and find the true alignment with the bore axis for accurate ID measurement.
Water, oil and coolant resistant to IP54
Carbide tipped contact points provide excellent durability
Ratchet stop for constant measuring force
Setting ring for zero point adjustment included
Extension rod standard for measuring deep hole
Two measurement modes ABS (absolute) and INC (incremental)
Portable display SPC output, connection cable is optional