The Milwaukee 42-70-0012 Belt And Pulley Assembly supports smooth power transfer in compatible equipment. It combines a belt and pulley to transfer rotational motion from the drive component to connected mechanisms. As the pulley rotates, the belt moves around it, helping transmit power and maintain movement of the equipment’s working parts. A properly functioning assembly supports co... https://www.wholetoolbox.com/milwaukee-42-70-0012-belt-and-pulley-assembly/42-70-0012.html