A rose reamer is generally used for what type of reaming?

• A. Rough reaming
• B. Finishing reaming
• C. Deburring reaming
• D. Threaded reaming

Answer: (A)

Rough reaming focuses on quickly removing material to bring a hole up to near size, rather than producing a smooth, exact finish. A rose reamer is built with many small, forward-cutting edges around the circumference, which gives aggressive material removal and the ability to enlarge holes quickly in one pass. That makes it well suited for rough reaming where speed is more important than a fine surface finish. Finishing reamers have finer, closer-tolerance teeth for a smooth bore and precise size, which is why they’re used when a polished, accurate finish is required. Deburring reaming and threaded reaming involve different goals (removing burrs or cutting internal threads), so they aren’t the typical uses for a rose reamer.