Fowler Electronic Snap Cal with Fractional Display Specifications include... 0-1.25" / 31.5mm Measuring Range .0005" / .01mm (fractions in 1/64th increments) Accuracy: + .001" / .02mm Dimensions of Fixed Jaw: 0.470" x 0.900" Features include... Spring Loaded Wide faced flat jaw for easy positioning. Direct in / mm / fraction conversion Hardened stainless steel construction. Direct inch/metric/fraction conversion. Measuring speed of 60"/second. Large, high contrast LCD display Hanging loop included for attachment to belt or chain