Value Brass Sliding Gauge Caliper Millimeter Bead Measuring Tool - 80mm EuroTool GAU-168.60
$0.20
www.nativejewelrysupply.com
This German-made gauge in solid brass offers a combination of inches and millimeters. It features notched jaws for inside/outside measurements and a 1/10th millimeter vernier for accuracy. Length: 60mm (2-1/2").
EuroTool
GAU-168.60
NativeJewelrySupply
https://www.etsy.com/shop/NativeJewelrySupply