Heat Treatment : Precision-crafted from hardened high carbon steel, our drill bits boast enhanced durability and sharpness for demanding woodworking tasks. Electric Drill Use : Designed for seamless compatibility with your electric drill, these bits ensure smooth and efficient plug cutting across various woods. Square Hole Drill Bits : Perfect for crafting tenons on both round and square stock, offering versatile applications in construction and renovation projects. Clean Entry : Enjoy clean, controlled entry into your workpiece with precisely ground internal and external cutting edges, ensuring accuracy and finesse. Consistent Fit : Our bits deliver consistently tight fits when cutting plugs, ensuring a professional look and feel in all your woodworking projects. Crafted with the heart of a true artisan, our Square Hole Drill Bits bring a touch of elegance and precision to every woodworking endeavor. Designed to elevate your projects from good to exceptional, they're your trusted companion in creating lasting masterpieces. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.