A thread indicating gauges is a tool to measure the correctness of the internal thread size. There are various types of thread gauges, which can be divided into three types in terms of shape: common coarse thread, fine thread, and pipe thread. Plug gauges with a pitch of 0.35 mm or less, Class 2 accuracy and higher, and Class 3 accuracy with a pitch of 0.8 mm or less do not have a stop tip.Tapered shank thread gauges are used for gauges under 100 mm, and double handle thread gauges are used for gauges over 100 mm.
After the thread plug ring gauge is used, the attachments on the measuring part should be cleaned up in time and stored in the specified measuring toolbox.
Gauges in use at the production site should be placed in the process position and handled gently to prevent damage to the measuring surface. It is strictly forbidden to use the gauge as a cutting tool to force it into the threads to avoid early wear.
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