Manual Caulk Removal Tool
A great little tool is made by Homax called the Caulk Away Caulk Removal Tool. It's got all kinds of special little angles and patented cutting edges using three blades that allows it to remove caulk within the joint itself. It has a corner scraper also scrapes the sides of the joint with a hardened plastic edge that won't damage the finish surface of the tile, tub or sink.
This tool is great to use in combination with the 3M Caulk Remover.
