Durable, hardened, one-face 20 deg (degree) rake angle design enhances nail resistance, chip removal and fast, easy sharpening. Wider flutes for maximum chip removal, even in deep holes. Polished and coated flute finish means chips won't stick to the bit, even when drilling in material that contains sap or glue. Through-center cutting design creates a more solid striking point against nails. Longer shaft length makes it easy to drill deeper or overhead without an extension. Drills into clean or nail-embedded wood when installing Romex wire, Pex water lines, rebar, bolts, and rope in piers, playground equipment and landscaping.