What tool is used for countersinking with adjustable cutting depth?

The microstop is an essential tool designed specifically for countersinking operations, allowing for precise control over the cutting depth. This is crucial in applications where a uniform and accurate countersink is necessary, especially in metal aircraft structures where the fit of rivets must be precise to ensure structural integrity.

Using a microstop enables the technician to make incremental adjustments to the depth as needed, ensuring that the countersink matches the specifications required for the rivets or fasteners being used. This adaptability is vital, as different applications may require varying depths based on material thickness or type of fastener.

The other tools mentioned serve different purposes. A microshaver is typically used for fine sanding or smoothing surfaces rather than countersinking. A rivet gun is used for installing rivets rather than preparing the surface for rivets. Lastly, a drill press is primarily used for drilling holes and does not offer the same level of depth control specific to countersinking as the microstop does.