What is the typical tolerance range associated with reaming?

• A. +-0.0005-0.002
• B. +-0.005-0.010
• C. +-0.001-0.003
• D. +-0.0001-0.001

Answer: (A)

Reaming is a finishing step used after drilling to bring a hole to a precise diameter with good roundness and a smooth surface. The tolerance you can expect from reaming is tight but practical, usually within a few thousandths of an inch, and depends on hole size, material, and tool quality. The range of about ±0.0005 to ±0.002 inches aligns with common, realistic reaming performance for many applications, making it the best match. The other ranges are either too loose for the precision reaming aims or, in some cases, too tight for typical setups.