To get the best performance from climbers, the gaffs must be properly sized and shaped. What is the correct tool for shaping gaffs?

The correct tool for shaping gaffs is the gaff gauge. This tool is specifically designed for checking the size and angle of gaffs to ensure they meet the required specifications for optimal performance. A gaff gauge allows for precise adjustments, which is critical for safety and functionality when using climbing equipment.

Using a gaff gauge helps ensure that climbers maintain grip and stability in their climbing gear. Proper sizing and shaping are essential, as poorly shaped gaffs can lead to difficulties in climbing or even accidents.

While other tools like a file, hacksaw, and sandpaper can serve various purposes in different contexts, they are not specialized for the accurate shaping and sizing of gaffs. A file can be used for finer adjustments, and sandpaper can smooth out surfaces, but they don't provide the precision that a gaff gauge does. Therefore, for ensuring the accuracy and safety of climbing gear, a gaff gauge is the best choice.