Our SDS-PLUS SLEDGE™ 1/4"" Mortar Knife stays sharper longer. Reinforced edges deliver maximum durability and reduced wear over the life of the chisel. This mortar knife has an optimized 1/4"" profile, ideal for removing mortar between horizontal and vertical bricks. We've engineered it to maintain its shape for increased productivity with a precision-forged tip for preserving decorative stone and brickwork. A dust channel provides fast debris removal, and high grade forged steel delivers maximum durability. For use with SDS Plus rotary hammers.