Upgrade your workshop with this 170PCS HSS Straight Shank Twist Drill Bit Set, perfect for precision metal drilling! Made from high-speed steel (HSS), these durable drill bits range from 1-10mm for versatile applications. The straight shank design ensures stability, while the metal storage box keeps them organized. Ideal for professionals and DIY enthusiasts, this comprehensive set delivers smooth, accurate drilling in steel, aluminum, and more. Whether for industrial use or home projects, this twist drill bit set offers reliability and efficiency. Get yours today for a seamless metalworking experience!