What tool is most commonly used to apply gunstock finish to a checkered area?

The use of a soft-bristle toothbrush is particularly effective for applying gunstock finish to checkered areas due to its ability to reach into the intricate grooves and patterns of the checkering. The bristles can gently agitate and work the finish into the wood, ensuring even coverage while preventing excess finish from pooling in the valleys of the checkering. This method also minimizes the risk of damaging the fine details of the checkered pattern, which is a crucial aspect of gunstock aesthetics and functionality.

While other tools like foam brushes and cotton cloths can be used for applying finishes on flat surfaces or more uniform areas of wood, they might not provide the precision needed for the textured surfaces found in checkering. A paint roller, on the other hand, is designed for larger, flat areas and would be unsuitable due to its size and the risk of applying too much finish. Each of these alternatives lacks the tailored application that a soft-bristle toothbrush offers for this specific task.