RLT Tools 1-20mm Hexagonal Straight Shank HSS Twist Drill Bits
High-speed steel (HSS) construction ensures superior durability and heat resistance for prolonged metal drilling performance. Precision-ground hexagonal shank prevents bit slippage in chucks, offering enhanced grip and torque transfer. Engineered for drilling through tough materials like metal, iron, and aluminum with clean, burr-free holes. Ideal for industrial workshops, automotive repairs, and DIY metal fabrication projects. Full set includes sizes from 1mm to 20mm, catering to diverse drilling needs in one package. Black oxide coating reduces friction and extends bit lifespan under heavy use. Designed for compatibility with standard power drills and magnetic drill presses. Trusted by professionals for precision and reliability in high-demand applications. Wholesale pricing available—stock up on premium-quality drill bits without compromising performance or budget.