I've used white vinegar to clean TS blades, why wouldn't it work on router bits? I have neve even thought of cleaning a bit, I have replace a couple of bits when they stopped cutting clean, maybe they just needed to be cleaned. This sound like I'm pretty out of touch again, but it's threads like this that keep my learning curver going in the right directions. I'm going to clean the two bits that I just made reference to. One is a MCLS rabbet bit, the other is a 3/8th dovetail bit that came with the set of bit that I bought from Incra for cutting dovetails and box joints.