Check the listing for details. 115PCS Drill Bit Set Electric Drill Mount Spiral High Speed Drill Bit Set w/ Box. Condition: New. Listed at 57.57 USD. Description If you are a remodeler, then this drill bit set is your indispensable work assistant. It is constructed from high-quality 4241 steel to ensure its durability. The cost-effective 115-piece set meets your drilling needs in different sizes, and the sharp cutting edge allows you to drill efficiently, so it will be an ideal purchase for you. Key Features Sturdy and Durable: The item is made of high-quality 4241 steel with a painting treatment iron box, making it resistant to wear and rust. So it can remain practical and beautiful without frequent replacement. Thoughtful Design: The 118° angle point and self-centering design reduce lockout and friction for improved self-centering, drilling efficiency, and shorter drilling cycles, giving you better control. 115-pieces: T.