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Ever since our establishment in the year 1981, we have been engaged in manufacturing and supplying quality accredited Calibration & Thread Gauges. These thread gauges are popularly used to inspect the tolerance limit and thread dimension of nuts and bolts by measuring their major diameter, minor diameter and pitch diameter. The offered thread gauges are available in single roll and tri-roll designs, where single roll gauges are used to check inner threads of nut and tri roll thread gauges are used to inspect external threads of bolt. We manufacture these calibration & thread gauges as per the pre-defined industry parameters by using best grade raw materials under strict supervision of our experts.