No. It is meant for smooth sided decking material. The tongue and groove decking has specific fasteners for use on T&G decking only. If you should decide to go with traditional decking, you can't beat this system.
Thank you for your CAMO question. The CAMO Marksman Pro Tool must be used with CAMO Edge fasteners. Thank you for viewing this CAMO product! -Team CAMO
Thank you for your CAMO question. This is not a system that exists today under the CAMO brand name. We have not tested our tools with hardwood flooring, but have heard of contractors who have used our system for similar applications. Thank you for viewing this CAMO product! -Team CAMO
Sure put the edge of a speed square down and but up against the speed square.
Face screw the edge closest to the building and stair stringer.
The tool can be used on 2x material.