IEY1719 Features: * Ideal for overhead work, rewiring, and remodeling * Cuts 3 times faster, last 7 times longer than a spade bit * Self-feed screw draws bit through wood * Ideal for plumbers, electricians, contractors, and serious Do-It-Yourselfers * 6"" overall length * Carded Dimensions: * 1-1/8"" diameter, 5/16"" hex shank