What staples does it use?

It takes 18-gauge narrow crown staples with a 1/4-inch crown, the standard size for cabinet backs, trim and light assembly. Stick to staples rated for the tool so feeding stays reliable.

Does it come with a battery?

The tool is typically sold as a bare tool, so batteries and a charger are separate unless a kit is listed. Any M18 pack you already own will run it.

How is it different from Milwaukee's 16-gauge finish nailer?

This model fires 18-gauge narrow crown staples, which hold thin panels and cabinet backs better than a nail. The 16-gauge nailer drives finish nails for trim and molding.

Can it replace a pneumatic stapler?

For most cabinet, trim and assembly work, yes, and it removes the hose. For all-day production work, a pneumatic gun still runs cooler and holds more fasteners per load.

Does it have depth adjustment?

Yes, it has a depth adjustment to set how far the staple sinks into the material. Test on scrap of the same stock before running a row.

Is it worth it over a cheaper cordless stapler?

If you already own M18 batteries, the shared platform and Fuel build make it the stronger pick. If you are starting fresh, compare the whole battery ecosystem before committing.