The ION(R) 8" Turbo(TM) Blade features a multi-cutting edge profile, designed to aggressively eat through ice. This allows you to open new holes quickly, or re-drill old holes with ease. Turbo(TM) blades are designed to cut quickly, efficiently, and smoothly-meaning no jarring breakthrough at the bottom of the hole. 8" Turbo(TM) multi-edge blade design provides an aggressive and smooth cut Stainless steel construction Mounting hardware included Compatible with ION(R) Alpha, ION(R) Alpha Plus, and ION(R) Alpha Pro models