/ Precision Measuring Tools / Precision Hand Tools / Slide Calipers / Vernier & Pocket Calipers / 1251MEA-20/500 * Not actual product image 64391 1251MEA-20/500 Vernier Caliper 64391 Other similar products Long Range Vernier Caliper is an additional scale on a measuring device that lets the user read distance or angle measurement more accurately than could be done by reading a uniformly-divided straight or circular measurement scale. It is a sliding secondary scale that indicates where the measurement lies in between two of the marks on the main scale. Features Specifications Contact Starrett Features 0 to 500mm/0 to 20" Range 0.02mm/0.001" Graduation Lock screw for sliding jaw Hardened stainless steel depth rod Graduations .001" inch, 0.020mm metric Sharp, black graduations on the satin finished bar Specifications Accuracy (mm): +/-.025mm per 300mm