calibration certificate

If clients need, we can provide calibration certificate from professional third party.

Thread gauges maintaince

After use of thread gauges, should clean the gauges at once, especially the measuring parts of gauges,

and put into the gauge box,

When using, should be careful to be sure no any damage of the measuring surface.

It is not allowed that using thread gauges as cutting tools and strongly turn into thread, the gauges will be damaged.

some knowledge about thread gauges

Thread gauge also called thread go nogo gauge, thread checking gauge, usually used to test the thread’s size.

Thread size composed by the thread diameter and pitch, usually when you choose a thread gauge, you need to know the thread’s specification.

Thread gauges are divided to thread plug gauge and thread ring gauges according to test internal thread or external thread