Undercut Saw

Get a saw cut right against the floor with an undercut saw. Designed for adding that extra space you need to slip flooring under door jambs, cabinets, and molding, this not-too-expensive specialized tool could save you lots of time.
Street pricing starts at $16.
Undercut Saw [Crain Tools]
Street Pricing [Google Products]
Great tools to have , ALthough I am partial to using the recip saw with a flexible blade…. Work really well. But these are also handy for flush cutting dowels, and trim work so having one around is a nice feature……
It’s one of the few “specialized” tools I can afford to own; especially cool when door casing needs to be trimmed to slide laminate flooring underneath.
Fein. Multi. Master.
I’d like it better if the blade was convex, like an azebiki, for starting in the middle of a piece of molding.
I’ll second Eli about the fein for small jobs – be we add a Crain Jamb saw for larger jobs.