Ace the Millwright Level 1 Challenge 2025 – Master Your Machinist Mojo!

The correct answer highlights a crucial aspect of machining operations involving different cutting tools. When comparing the speed and feed of a reamer to that of a drill, it is important to understand the distinct functions of these tools. A reamer is designed to refine and finish the holes that have already been drilled, providing a smoother surface and more accurate hole dimensions.

This finishing process requires the reamer to operate at a slower RPM compared to a drill. The decreased speed is due to the reamer's need for precision rather than aggressive material removal, which aligns with its purpose of enhancing the quality of the hole. Additionally, the feed rate for a reamer is generally faster than that of a drill. This is because a reamer requires sufficient engagement with the material to accurately shape the hole; therefore, a faster feed aids in maintaining the cutting action and ensures effective material removal while still allowing for control over the machined surface quality.

In summary, for a reamer to effectively perform its finishing task, it operates at a slower RPM while allowing for a faster feed rate compared to a drill. Understanding these differences is essential for selecting the right parameters to achieve optimal machining results.