Measure hole diameter in dirty machine shops and the outdoors with the pull of a trigger. Rated IP67, the bore gauge in these sets is protected from dust and temporary submersion in water. Sets include everything you need to measure—a pistol-grip gauge, heads of different measuring ranges, and setting rings. Thanks to its pistol grip, you can take measurements with one hand and reach into awkward angles, such as those overhead. The pistol grip also gives you precise control using just your fingertips instead of your whole hand. The LCD display directly shows the measured diameter, so you don’t need to set a baseline like you do with a dial bore gauge.

Instead of the standard two contact points, each head in these sets has three to center the probe in holes. This improves accuracy for detecting out-of-roundness, a common check for quality control. Connect the gauge to your computer, smartphone, or other device via Bluetooth or the SPC data output to monitor and analyze data in real time.

Use the included setting rings to calibrate your gauge.