Insize Plain Plug Gauge H7 Class Go and No Go Type Gauge 4124 Series (Size: 22-41 mm)

Insize Plain Plug Gauge H7 Class Go and No Go Type Gauge 4124 Series (Size: 22-41 mm) plain plug gauge is a precision measurement tool used to verify the dimensional accuracy of cylindrical holes. Typically made from hardened steel or carbide, these gauges ensure that the diameter of a hole meets specified tolerances, providing a reliable method for quality control in manufacturing processes.

Plain plug gauges come in two main types: go and no-go gauges. The go gauge has a diameter at the lower end of the tolerance range, while the no-go gauge has a diameter at the upper end. During inspection, the go gauge should fit into the hole easily, confirming that the hole is not too small. Conversely, the no-go gauge should not fit, ensuring that the hole is not too large. This simple yet effective binary assessment helps maintain consistent product quality and adherence to specifications.

The gauges are manufactured to precise standards, often following guidelines set by organizations such as the International Organization for Standardization (ISO) or the American National Standards Institute (ANSI). They are used extensively in industries where precision is critical, such as aerospace, automotive, and mechanical engineering.

Maintaining and calibrating plain plug gauges is essential for accuracy. Regular inspection and proper storage prevent wear and damage, ensuring that these gauges provide reliable measurements over time.