Which tool is typically required to ensure holes are enlarged to their full size in composite materials?

A reamer is the correct tool to ensure holes are enlarged to their full size in composite materials. This tool is designed specifically for precision hole sizing and is capable of producing a smooth and accurate finish. When working with composites, it is vital to maintain the integrity of the material while achieving the desired diameter, and reamers excel in this regard.

Reamers work by removing only a small amount of material, allowing for finer adjustments than other drilling methods. This level of precision is particularly important in aerospace applications, where components are often subjected to rigorous standards for fit and tolerances. The ability of a reamer to produce a consistent diameter and smooth finish minimizes the risk of cracking or delaminating the composite material, which can happen with more aggressive drilling methods.

Other tools may be useful in different contexts, but they do not offer the same level of precision and finish that a reamer does, making it the preferred choice for enlarging holes in composite structures.