a flush cut saw

 

If you are a box maker, a saw I recommend for your own Christmas stocking is a small flush cut saw, also of Japanese design. I use this saw to trim miter keys flush at the corners of boxes, and with careful use, it will do so without marking the surrounding wood. It cuts quick. I bought two that have kept sharp through several classes and multiple student uses. 

I prefer the Tamatori single edge flush cut saw  over the version with two cutting edges as it allows me to guide the back edge of the saw flush against the work without scraping my fingers with the teeth on the back edge.

Make, fix and create...