What must be checked before using a countersink cutter on the workpiece?

Before using a countersink cutter on a workpiece, checking the depth setting is crucial. The depth setting ensures that the countersink is applied correctly, allowing for proper fit and alignment of fasteners, such as screws or bolts, that will be inserted into the material. If the depth is too shallow, the fastener may not sit flush with the surface, leading to potential structural weaknesses or aesthetic issues. Conversely, if the depth is too deep, it could weaken the material surrounding the hole or fail to provide sufficient engagement for the fastener.

While other factors like material compatibility and speed settings are important in machining operations, they are secondary to ensuring the countersink's depth is set appropriately for the specific application. The power source, while necessary for operation, doesn't directly impact the effectiveness of the countersink cutter in terms of the resultant hole geometry or fitment of the fastener. Hence, prioritizing depth setting is essential for achieving the intended results.