Specification: IS, DIN, ANSI & JIS, Every gauge carries a calibration certificate giving actual values, Auto reversal mechanism, Fitted with jewels and Swiss miniature ball bearings for smoother operation, Robust and highly sensitive gauge suitable for workshop use, Metric Gauges conform to IS 11498 and for the European market to DIN 2270, Inch Gauges conform to ASME B89.1.10M Integral dovetail offers flexibility and rigidity for mounting of the gauge, Metric & Inch gauges are supplied with 2 mm tungsten carbide ball stylus and 8 mm spigot assembly as standard supply No additional accessories are offered when suffix A is added to the type number