FEATURES • Carbide-tipped measuring faces. • Wide measuring range provided by combining extension rods. • A standard supplied as standard accessory for zero-setting. • Diameter of extension rod: 22mm • Graduation: 0. 01mm or 0.001" • Accuracy: 3+n*+L*/50(μm)(Metric) or 0.00005”(3+n*+L*/2)(Inch) *L=max. measuring length (mm or inch);n=number of rods • With carry case.