A ring gauge is typically used to inspect which part feature?

A ring gauge is typically used to inspect which part feature?

• A. Shaft
• B. Thread
• C. Hole
• D. Surface

Answer: (A)

Ring gauges verify the outer diameter of cylindrical features. They are precise rings whose inner bore size corresponds to a specific shaft diameter, so you can tell if a shaft’s outside diameter falls within tolerance by whether the shaft passes through the ring. This is why a ring gauge is used for shafts. It wouldn’t be used to check a hole (that’s done with gauges for inside dimensions), threads (thread gauges), or flat surfaces (surface measurements).

Ring gauges verify the outer diameter of cylindrical features. They are precise rings whose inner bore size corresponds to a specific shaft diameter, so you can tell if a shaft’s outside diameter falls within tolerance by whether the shaft passes through the ring. This is why a ring gauge is used for shafts. It wouldn’t be used to check a hole (that’s done with gauges for inside dimensions), threads (thread gauges), or flat surfaces (surface measurements).