The Lisle Corporation Pocket Carbide Scraper, No. 35290, is a pocket-sized tool designed to remove gasket residue from steel and aluminum heads and manifolds. The four-sided carbide insert is 3/8" wide for use in tight spaces. The precision ground insert remains sharp with use. Features a dual durometer handle with a pocket clip. The overall length of this tool is 5". Can also be used on carbon build-up and rust.