Profile: Lang Tool Co. provides a variety of products and services for brownfield remediation. We provide grinders and saws for stumps, asphalt, concrete and rock. We deal with heavy duty brush mowers, bunching heads and in-situ soil remediation blenders. Our products include stump grinder, rock saw, tree mulcher and remediation blenders. Our stump grinder is designed to grind stumps and the underground root structure.