1.5 to 2.4 inches (40-60mm) External Dial Calipers

Machine-DRO History - A division of Allendale Electronics, a family run British company founded in 2004. Our roots are firmly based in the UK, with a head office, engineering and inspection department at our works in Hoddesdon, Hertfordshire. We pride ourselves on being a measuring tool specialists offering tools, services, advice and expertise to our end customers and international distributor network.To calibrate the caliper use a known setting standard, for example a slip gauge or internal micrometersWith the legs set between the known size turn the outside ring on the dial to match the size. The calipers are now calibrated to measure any size within its rangeTo measure the thickness, pull the lever towards the handle, slowly release the lever and the measurement will be shownThey are constructed of high quality hardened stainless steel, heat insulating handle and 55mm diameter dial indicatorMeasuring Range - 1.5-2.4 inches (40-60mm)Leg Reach - 2.75" (70mm), Contact Point Length - .40" (10mm)Resolution - 0.01mm