Our SDS PLUS SLEDGE™ Chisels are our Longest Lasting, Most Productive family of chisels. The SDS PLUS SLEDGE™ 3/8” Mortar  knife is forged with high grade steel to deliver maximum durability and reduced wear over the life of the mortar knife. This mortar knife has an optimized 3/8" profile, ideal for removing mortar between horizontal and vertical bricks. We've engineered it to maintain its shape for increased productivity. The mortar knife is designed with a precision-forged tip for preserving decorative stone and brickwork and a dust channel for fast debris removal. For use with SDS PLUS rotary hammers.