What is the recommended operating speed when drilling a hole?

The recommended operating speed for drilling a hole is typically full RPM, especially when working with materials that allow for such speeds without compromising the quality of the cut or the integrity of the tool. Drilling at full RPM is advantageous because it maximizes the rate of metal removal, leading to increased efficiency and shorter drilling times.

Using full RPM is particularly effective when dealing with softer materials or when utilizing high-speed steel or carbide drill bits, which are designed to operate optimally at these speeds. At full RPM, the drill bit creates a uniform and clean hole, as the cutting edges are able to engage the material more effectively, reducing the likelihood of heat buildup and potential tool wear.

While variable RPM, half RPM, and low RPM have their uses in specific applications, such as when drilling into harder materials where lower speeds might be necessary to prevent overheating or tool damage, the scenario described typically aligns with the advantages provided at full RPM. Knowing when to adjust the RPM based on the material and drill bit type is essential, but for general drilling operations, full RPM remains the standard recommendation.