Makita 798148-7 4‘1/2" x 17" Clay Spade, Spline or 3/4" hex ‘ 21/32"Makita 798148 7 The Makita Clay Spade Spline Shank Bit is ideal for removing hard dirt, clay and loose concrete from the ground when used with a rotary hammer. The Makita Clay Spade is engineered with state of the art technology for increased efficiency and long life. The bit is shot peened for increased durability. Key Features APPLICATIONS : For digging in clay, shale, hard packed gravel, loose concrete and dirt VERSATILITY : For use with Spline or