What is a major disadvantage of the alternate tooth set?

The alternate tooth set is characterized by an alternating pattern in which the teeth of a cutting tool are set at different angles to help manage chip removal and reduce binding in the cut. However, a major disadvantage associated with this type of tooth set is the capability to produce a poor surface finish.

This happens because the uneven engagement of the teeth can lead to variations in cutting depth, which can create an inconsistent surface as the tool progresses through the material. The alternating angles may not provide the smooth and even cutting action necessary for achieving a high-quality surface finish, especially when dealing with harder materials or precise tolerances. Consequently, while the alternate tooth set can help with chip clearance, it often compromises the quality of the surface produced, making it less suitable for applications that require smooth finishes.

Choosing other tooth configurations could improve surface quality, as they might ensure a more consistent engagement with the workpiece, thereby producing a finer finish.