Amazon.com: The Beadsmith Rectangle Wire Gauge – Premium Gauge Sizer – Laser Cut Slots and Marked in Imperial Standard Units: 1-36 and Millimeters – Flat Ruler for Determining Wire and Drill Bit
Wire Gauge, Standard Wire Gauge Measurements 0-36 - Standard & Metric, 1 Tool, Stainless Steel — Beadaholique
K-wire Ruler & Pin Gauge - Bowers Medical Supply
K-wire ruler and pin gauge, 6'', measurements in inches and millimeters | Ambler Surgical