U.S.SAWS JS-160P is a Certified Propane Powered Joint Clean-out Saw/Mill designed to clean-out existing control joints to prepare for new joint fill application or to remove failing or deteriorated existing joint fill material. This machine can be used to remove polyurea, epoxy, and polyurethane joint fill materials. This machine is designed for large joint cleanout projects where a certified propane power source is prefered over gas or electric.