Bulldog Extreme, 2-1/2" x 10" Chisel, For SDS Plus, Bracing Ribs Increase Stability, Optimized Length Improves Handling In Tight Spaces, Flat Spade Design, Self-Sharpening Edge, Eliminates Downtime & Increases Removal Rate, Double Length Spade Increases Service Life, For Material Removal Applications In Concrete, 30% Higher Removal Rate VS Standard Chisel, Proprietary Heat Treat Process.