1" Wood Boring Bit, Razor Sharp Cutting Edges For Aggressive Drilling & Fast Starts, High Grade Cutting Metal For Durability & Long Life, The Black & Decker Spade Bit Is Made For Drilling Larger Diameter Holes In Wood, Typically Used By Electricians For Drilling Wire Clearance Holes, For Use With Any Corded Or Cordless Drill, This Bit Allows For Fast, Clean Drilling In Wood.