1-in. Self-feed Wood Drill Bit

3 Times the cutting area & edges of standard self feed bits. Quick change impact hex shank fits1/2-inch or larger drills. Also fits 7/16-inch hex impact wrench drills. For drilling large diameter holes in wood. Aggressive screw pitch. Precision milled shank eliminates run out & wobble. High carbon steel for max strength under tough drilling conditions. Ideal for pipe & conduit systems.