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OSG Tap & Die Inc. offers a series of standard thread limit gages for inspecting the pitch diameter and functional thread for internally threaded products. They are available in inch and metric sizes. The GO gages should be screwed in and passed through by hand without difficulty. The NO-GO gages should not be screwed in by more than two revolutions. The gages reportedly provide superior accuracy and maximum wear resistance.
Related Glossary Terms
- pitch
pitch
1. On a saw blade, the number of teeth per inch. 2. In threading, the number of threads per inch.
- tap
tap
Cylindrical tool that cuts internal threads and has flutes to remove chips and carry tapping fluid to the point of cut. Normally used on a drill press or tapping machine but also may be operated manually. See tapping.
- wear resistance
wear resistance
Ability of the tool to withstand stresses that cause it to wear during cutting; an attribute linked to alloy composition, base material, thermal conditions, type of tooling and operation and other variables.
