AWG WIRE GAUGE Dual-Sided Non-Ferrous Wire Gauge, 0-36 American Standard (AWG) and SAE. Overall Size: 3-1/2" Dia. x 3/32". Thickness Measurement Markings: Side 1: American Wire Guage Sizes 0-36, Side 2: sae Sizes: 0.005" - 0.325"
Tempered Hardened Steel. Used on Non Ferrous Metals and Wires ( ie Gold, Silver, Copper, Aluminum, Brass, Nickel Tin, Platinum, Tungsten). Great for Home, Workshop, Jeweler's, Hobbyists Etc.