Dear OzBers,
I'm hoping a carpenter, builder, or some other sort of learned dude can advise me about a novel type of tool that I need, and if it exists, what it is called.
What I need is a razor-sharp longish blade (at least 15 cm), not bevelled/only sharpened on one side, with no traditional 'handle' at all, but instead some sort of method of gripping it and manoeuvring it from its two ends ONLY on the side that features the diagonally sharpened slope. I want the cutting edge to be absolutely flush up against whatever I am cutting.
That all sounds a bit convoluted I guess, so maybe explaining what I want to use such a tool for will help. I am restoring a large set of old wooden gates, and part of the process involves 'injecting/squirting' expanding filler into large breaches ('potholes'/crevices) in the wood, particularly at points of union between various parts. That filler stuff is an excellent product, but it does require PRECISION cutting away of the expanded excess the next day, prior to sanding and painting. On something like huge old gates with various odd angles involved, this can not be achieved with a standard sharp knife because the knife handle precludes a 'flush approach'.
What I'm getting at is something akin to a long, flat, wide razor blade with knobs strongly attached to ONE side, but NOTHING protruding in any way on the other side. Does a tool like that exist, or will I have to set about making it myself?
Only thing that springs to mind is a “draw knife” but these commonly have handles attached on both sides, you may be able to modify one or look for a blade only and custom make handles to suit.