Millwright Level 1 Practice Exam 2025 – All-in-One Guide to Master Your Certification!

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What is one advantage of using a reamer over a drill?

Reamers are more versatile

Reamers cut at a slower speed

Reamers produce smoother finishes

Using a reamer offers the distinct advantage of producing smoother finishes compared to a drill. This is primarily due to the design and cutting action of the reamer, which is specifically engineered to refine the size and improve the surface finish of an existing hole. Reamers typically have multiple cutting edges that engage with the material more effectively and evenly, leading to a high-quality finish on the inner surface of the hole. In contrast, drills are designed for material removal and are not optimized for creating smooth surfaces. The result is that reaming is often the preferred method when precision and surface quality are critical, such as in applications where a shaft must fit into a bearing with minimal play or resistance. This capability enhances the fit between components and ensures better performance in mechanical assemblies.

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Reamers are less expensive

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