When using the drill press to make a hole in thin sheet metal, what must be done?

Clamping the material in place is essential when using a drill press to create a hole in thin sheet metal. Securing the metal prevents it from shifting or moving while drilling, which could lead to inaccuracies in the hole's placement or even cause the drill bit to bind or break. Clamping also ensures the operator's safety by minimizing the risk of injury from an unstable workpiece.

While drilling at high speed can sometimes be appropriate for certain materials, it is not necessarily the best practice for all sheet metals. Similarly, holding the metal securely with your hands is not a safe or effective alternative to clamping, as it can lead to accidents. Using cutting fluid can enhance the drilling process by reducing friction and cooling the bit, but it does not substitute for the critical need to keep the sheet metal firmly in place during drilling operations.