What is go no go gauge?

A go/no-go gauge, also known as a pass/fail gauge, is a precision measurement tool used to check the dimensional accuracy and conformance of manufactured parts. It consists of two gauge pins or members, one representing the upper tolerance limit (go gauge) and the other representing the lower tolerance limit (no-go gauge).

When a part is measured against the go/no-go gauge, it should either pass (fitting smoothly between the go gauge and not fitting between the no-go gauge) or fail (not fitting between the go gauge or fitting between the no-go gauge). This allows for quick and accurate assessment of whether a part meets the specified dimension requirements.

Go/no-go gauges are commonly used in manufacturing, quality control, and production environments where consistency and precision are essential. They are available in various shapes and sizes, depending on the specific requirements of the part being checked.

Overall, go/no-go gauges are an essential tool for ensuring the quality and accuracy of manufactured parts, helping to reduce errors, improve efficiency, and maintain high standards of production.