Diablo 4.5" x 16" SDS-Max Clay Spade Chisel DMAMXCH1010Size: 4 1 2" Length: 16" Shank: SDS Max Chisel Type: Spade Chisel Tools: SDS Max Rotary Hammer Drill Materials: Clay; Dirt Soil; Gravel Diablo's SDS Max Clay Spade Chisels deliver extreme durability and stability when creating holes, tunnels or trenches in dirt, soil, hardened clay or packed gravel. A unique heat treatment process strengthens the steel body to withstand the stress of high powered hammer drills and the impact of digging into hardened