What is the recommended RPM when drilling holes according to standard practices?

When drilling holes in aerospace materials, the recommended RPM—often referred to as "full speed"—depends largely on the material being drilled and the size of the drill bit. Standard practices suggest using a specific RPM that maximizes efficiency while minimizing heat buildup and tool wear. A full RPM allows the drill bit to operate at its design capacity, ensuring that it effectively cuts through the material without causing excessive friction or heat that could lead to damage.

The correct RPM is critical for maintaining the integrity of both the drill bit and the workpiece. For instance, drilling into harder materials such as titanium or stainless steel might require lower RPMs to prevent burning out the bit, while softer materials can often be drilled at higher RPMs. Understanding and applying the full RPM helps optimize the drilling process, ensuring precise hole creation with minimal rework needed due to inaccuracies or tool failure.