True or False: When drilling in composite material, the drill motor should be stopped before withdrawing the drill-reamer from the assembly.

When drilling in composite materials, it is indeed essential to stop the drill motor before withdrawing the drill-reamer from the assembly. This practice helps prevent damage to the material and ensures a clean exit point. When the drill motor is running, withdrawing the drill-reamer can lead to excessive friction and cause the composite material to splinter or delaminate, compromising the integrity of the part being worked on.

Additionally, stopping the drill motor helps provide better control and reduces the risk of the drill-reamer becoming stuck in the material or creating an unintended spiral effect, which could further damage both the tool and the workpiece. By following this procedure, mechanics can maintain high standards of quality and safety during assembly operations, particularly when dealing with sensitive materials like composites.