This Groove Step Drill Bit is perfect for drilling through tough materials. The sharp, hardened steel drill bit is able to bore through metal, wood, and plastic with ease. The unique spiral flute design of the drill bit helps to clear away debris as you drill, making the process quick and easy. The precision-machined tip of the drill bit ensures that your holes are always accurate and clean. This Groove Step Drill Bit is the perfect tool for any do-it-yourselfer or professional contractor.