Carbon Steel : Heavy-duty shanks for satisfactory durability, high wear resistance, and longevity, Use them to cut faster and cleaner holes in wood.
Sharper & Faster & Efficient : Beveled Cutting Edge+Optimized largest area groove = sharper and faster drilling speed & smoother chip removal.
Multiple Application : Features 1 4 in. hex shank, and it fits various drills. Accurate drilling on Most Types of Wood, Fiberglass, Plastic, PVC (Polyvinyl Chloride), and soft metals such as aluminum. Universal for the majority of drills currently on the market.