What can be done to ensure even filing of a gaff tip?

To ensure even filing of a gaff tip, one effective method is to color the tip with a black marker. This technique provides a visual reference for the filing process. As the gaff tip is filed, the marker will gradually wear away, indicating areas that have been filed and helping the user see where additional filing is needed. This visual cue promotes precision and consistency, contributing to a uniformly shaped tip that enhances its effectiveness and safety.

The other methods may not provide the same level of accuracy or utility. Eyeing the tip may lead to subjective assessment and potential unevenness, while measuring after each file could be impractical and time-consuming. Testing the gaff tip by jabbing into wood could also potentially damage the tip or not accurately reflect filing uniformity, making it less reliable for ensuring evenness. Thus, using a black marker to indicate the areas being filed delivers a straightforward and effective solution.