Constructed from high carbon steel for strength and durability in heavy-duty applications. Fully heat-treated to resist bending and to ensure longevity. Features a single spur that scribes the hole edge for a clean and smooth finish. The coarse screw point allows for quick starting and efficient drilling in all wood types. Solid center design enhances bit rigidity, ensuring straight drilling paths. Optimized flute grind design facilitates rapid chip removal, enhancing drilling speed and finish. Hex shank provides a secure lock in drill chucks and extensions, preventing slippage.