Are you seeking a reliable drill bit set for metal drilling? Our 99PCS 1.5 - 10MM HSS Straight Shank TiN Coated Twist Drill Bit Set is your solution. Made of high - speed steel (HSS), it offers excellent hardness and durability. The TiN coating enhances wear resistance and cutting performance. Ranging from 1.5 to 10MM, it suits various metal - drilling needs. Packed in a plastic box for easy storage and portability. Whether you're a DIY enthusiast or a professional, this set ensures efficient and precise drilling.