•	Thread Pitch micrometer calibrator not available at our local certify to NABL •	So TPM self
checked by ourselves with " Master Thread Plug Gauge " of different frequencies for usage and this
is to be done every time for new batches of production. •	We will enquire TPM calibrator and they
are approved to NABL or other standard. •	Based on our experience and current issue, we will use
measuring frequency of TRG for hundred to one fifty numbers only, after that we will send for
calibration •	After calibration and based on the results/wear out in gauge, we will fix the
frequency for next usage up to fifty to hundred numbers. •	Any time we will keep three gauges, one
is to production and one is to inspection and another one for stock. •	Mean time we will enquire
for other makes also.