Red Seal Machinist Practice Exam

What is a "face mill"?

1. A type of milling cutter with its cutting edges on the face

2. An end mill used for vertical milling machine

3. A tool used in surface grinding

4. A type of drill bit

The correct answer is: A type of milling cutter with its cutting edges on the face

A face mill is a specific type of milling cutter that has its cutting edges located on the face, which is the flat side of the cutter. This design allows for efficient removal of material from the workpiece, making it ideal for achieving flat surfaces and high surface finishes. The cutting action occurs primarily on the face rather than on the side, which differentiates it from other types of milling cutters. Face mills are commonly used in machining operations where large, flat surfaces need to be milled quickly and accurately. The size and number of teeth on the face mill can also vary, which provides flexibility in terms of cutting speed and type of material being machined. Understanding the function and application of a face mill is crucial for machinists when selecting the appropriate tooling for specific machining tasks.