What advantage does the PRO tool have over the 217 tools?

The 217 tools aren't guiding the clins 100%, so they can still bend over in the tangential direction.

This is because the clins aren't 100% guided, and they end up in the sleeve instead of a hole that fully guides the clins.

The surface can also be damaged when installing the inserts because the hit of the tool isn't limited as is with the PRO-tool.

The ease of installation is also less, since you first need to screw on the insert on the tool, then again screw the insert in the parent material.

The strike surface of this tool is also much smaller, so you have a higher change of hitting your fingers.

Here are the cross references: