Measure hole diameter and read it directly on an LCD display, no baseline measurement required. They measure deeper into smaller holes than inside hole micrometers. These Mitutoyo sets include handles with digital displays, changeable heads, and setting rings. Rotate the display up to 330° to see results at the angle you need. Unlike the usual two contact points, the probe has three to center the head, which means more accurate tests for out-of-roundness. To protect against bumps and corrosion, the contact points have a titanium nitride (TiN) coating. A flat-bottom anvil gives you stability to check blind holes.

An SPC data output lets you connect the gauge to a computer or data processor to monitor data and analyze trends. Zero-position memory, also known as absolute (ABS) positioning, retains the measuring position when the gauge is turned off. A zero-set button lets you start measuring at any point. For repeatable go and no-go tests, set upper and lower tolerances. A bar indicator on the display shows whether your measurement is within bounds, making test results quick to check. Alarms will sound if there are any issues, such as setting errors and low battery.

Use the included setting rings to calibrate your gauge.

Additional heads (not included) are available to measure other bore sizes.