Electronic bore gages measure internal diameters and bores. Data output options available including Bluetooth.

Shop Electronic Bore Micrometers

770BXT Electronic Internal Micrometers provide IP67 level of protection against coolant, water, dirt and dust in hostile  shop environments. In addition, they offer extended travel, reducing the need to exchange anvils.

  • Wide measurement range without changing anvils
  • Resolution to .00005" (0.001mm)
  • Large high-contrast LCD digital readout is easy to read and reduces error
  • RS232, USB, wireless output
  • Carbide measuring faces on sizes above 1/2" (12.5mm) diameter


  • Extensions available for deep holes
  • Includes instant inch/millimeter conversion and preset + and - functions
  • Precision ratchet stop provides correct contact pressure for accurate readings
  • Each micrometer bore gage with head comes with a wooden case, complete with setting ring, contacts, adjusting wrench, spare battery, and instructions