Superior Steel SC8822 Clay 6″ x 4 1/2″ Square Clay Spade Round Hex/Spline Hammer 19″ Long. Designed for use with Spline® hammers. Digs clay, hard-packed gravel and dirt Fully hardened steel body avoids breakage and delivers increases life and durability. Hardened steel design stands up to the toughest daily use. For concrete removal, hard surface break up and chiseling.For light chipping and chiseling of tile, mortar, glazing compounds, and other masonry products.