Make accurate marks at precise measurements—these calipers have carbide-tipped jaws that press into workpieces for measuring and marking. Measure to the spot you want to mark and tighten the jaws so they won't move. One jaw extends further than the other, allowing you to hold the caliper in place and run it along the edge of your workpiece as you scribe. All have a zero-set button, so you can start measuring at any point.

Calipers with a USB connection use a USB data cable or wireless data transmitter (both sold separately) to relay data to your PC. You’ll need a wireless data receiver (sold separately) if using a wireless data transmitter.

Calipers with Zigbee connection wirelessly send data to Zigbee-enabled receivers (sold separately).