The MARSHALLTOWN Brick Jointers smooth joints between bricks. Built with high carbon steel, this product is designed for different joint sizes on each end to give you the best variety on the job. Our contractor-grade QLT Brick Jointers are made from carbon steel and polished to make a slick joint. MARSHALLTOWN Brick Jo Marshalltown 83 - 3/8 & 1/2 Brick Jointer