In what way should workpieces be secured when using powered tools?

The most effective way to secure workpieces when using powered tools is by using clamps or vices. This method ensures that the workpiece is firmly held in place, allowing for stability and precision during the machining or fabrication process. Clamps and vices are designed to maintain a secure grip, preventing movement which could lead to unsafe conditions or inaccurate results. By immobilizing the workpiece, these securing methods help achieve more controlled and consistent work, thereby enhancing overall safety and efficiency.

Holding a workpiece with hands can introduce significant risk, as it can lead to loss of control over the tool or workpiece, especially when dealing with power tools that generate high speeds and forces. Applying pressure with body weight may not provide the necessary stability and control, increasing the likelihood of accidents. Similarly, relying on friction between fingers is highly unsafe, as it doesn't ensure a secure hold, making it easy for the workpiece to slip and potentially result in injury or damage to the material being worked on. Therefore, utilizing clamps or vices stands out as the safest and most effective practice in securing workpieces for powered tool operations.