supply of mechanical folding type portable wheel , mechanical folding type portable wheel diameter gauge (equivalent to pie model wd-1) for broad gauge (b.g.) wheel diameter measurement with 0.1 mm least count, ? 0.1 mm measuring accuracy, featuring a vernier scale with lensatic viewing window giving direct reading of dia on scale. measuring rang e: 800?1010 mm. all wheel contact parts are made from hard alloy steel. supplied complete with a calibrat ed calibration rod, calibration certificate traceable to national standard and a durable wooden storage/trans port box with carrying handle. likely make pie, jyoti enterprises or equivalent make. [ warranty period: 3 0 months after the date of delivery ] ]