Wire Gauge & Slot Calipers, Stainless

Standard digital calipers cannot tell you what AWG a piece of stripped wire is, and they cannot measure to the bottom of a stator slot without binding. These can. Two problems, one tool.

Specifications

• Body: 304 stainless steel, satin finish
• Range: 0 to 6 in / 0 to 150 mm
• Resolution: 0.0005 in / 0.01 mm digital readout
• Battery: CR2032, included, with one spare
• AWG cutouts: Gauges 10 through 40 stamped on the spine
• Depth probe: Offset slot-depth probe on the rod
• Case: Fitted closed-cell foam in cherry box

The AWG cutouts

Drop your stripped conductor into the cutouts on the spine, starting large and working down, until you find the one that just passes. That is your gauge. No math, no chart, no squinting at a diameter and converting. Works on bare copper and aluminum. The cutouts run 10 through 40 — covers everything from heavy motor lead wire down to fine winding wire.

The slot-depth probe

The probe is offset from the rod so it clears the slot wall on the way in. Standard caliper depth probes bind against the lamination stack before they reach the bottom. This one doesn't. Reads in inches or millimeters, same switch as the main jaw.

The case

Fitted closed-cell foam in a cherry box. The foam holds the calipers and both batteries without rattling. The box keeps shop grit off the slide when the tool is not in use.