General description Professional quality M35 high-speed steel drill bits with 5% cobalt, designed for drilling tough materials such as stainless steel, hardened steel, cast iron, copper, aluminum, titanium alloys, and hard plastics. This 10-piece set is ideal for DIY projects, home improvement, and general construction or engineering tasks. Technical specifications Material: M35 HSS with 5% Cobalt Drill diameter: 6mm Flute length: 57mm Total length: 93mm Angle point: 135 degrees Type of flute: Spiral Stem type: Straight Package dimensions: 11.5 x 7.7 x 0.9 cm Compatibility and accessories Compatible with standard chucks and regular round collets Suitable for various drilling equipment including lithium drills, hand drills, impact drills, bench drills, magnetic drills, column drills, milling machines, and machining centers Installation Use at a speed of 1,500 rpm or more for maximum efficiency For extended drill life, consider using coolant Usage Ideal for drilling stainless steel,