I clean resin build up from my saw blades with Fantastic or 409. I soak the blades by laying them on a trash bag, saturating the blade and covering the blade with the other half of the bag. Let soak for a few hours and scrub the teeth with a tooth brush. Rinse with warm water and dry. For router bits, I soak them in a small cup just large enough to hold the bit and then brush with a tooth brush. If the bit has a pilot bearing, remove it, lube it, and replace it when the bit is clean. I have many tooth brushes from the dentist visits every 6 months. I use an electric tooth brush, so the manual ones the dentist hands out become shop tools.
I've gone out to find myself. If I return before I get back, have me wait for me.
"Sawdust is Man Glitter"