The DEWALT DW1604 3/16" x 12" Extended Length Black Oxide Speed Tip Drill Bit is a high-quality power tool accessory made of steel. With a diameter of 3/16" and a length of 12 inches, this drill bit is designed for precision and efficiency in various drilling tasks. The black oxide coating not only adds durability but also enhances the drill bit's performance, making it a reliable choice for professionals and DIY enthusiasts alike. Made by the trusted brand DEWALT, this drill bit is a versatile and essential addition to any workshop or tool collection.