12" Xtra Wide Blades are designed to maximize excavating efficiency and sized to match the capability of the engine output. Each blade is manufactured from hardened steel for longer life and durability, helping it to carve through the various soil conditions the operator may encounter. Roots and rocks - no problem! Our blade design and speed cut (not rip) right through the roots up to inch. They're also not reserved when met with rocks either. Small, loose rock is excavated right with the soil. For fist sized and larger rocks, they simply ride over the top.