What speed should the drill be operated at when drilling in composite material?

When drilling in composite materials, the drill should be operated at full RPM. This is because composite materials, which are often made of lightweight fibers and resins, require high speeds to effectively cut through the structure without causing damage. At full RPM, the drill bit can maintain its cutting efficiency and prevent excessive heat buildup, which could lead to delamination of the composite layers.

Additionally, operating at high speeds helps to achieve a clean hole with a smoother finish, reducing the risk of splintering or chipping the composite material. It also ensures that the drill bit penetrates the material effectively, providing precision that is crucial in aerospace applications. Variability in RPM settings or lower speeds may not provide the necessary cutting action, potentially increasing the risk of tool wear or damaging the workpiece.