TINOR Set of 10 M35 Twist Drill Bits HSS Gold and Cobalt HSS 3.5mm x 70mm for Drilling Stainless and Hard Steels, Cast Iron, Copper, Aluminum, Wood and

General description Professional quality set of 10 M35 high-speed steel (HSS) twist drill bits with 5% cobalt, designed for drilling stainless steel, hardened steel, cast iron, copper, aluminum, wood, and plastic. These durable and strong drill bits are ideal for both DIY projects and general construction or engineering tasks. Technical specifications Material: M35 HSS with 5% cobalt Drill diameter: 3.5 mm Flute length: 39 mm Total length: 70 mm 135° split point tip for self-centering Type of flute: Spiral Type of rod: Straight rod Heat resistance: Recommended speed of 1,500 rpm or more Compatibility and accessories Compatible with standard chucks and regular round collets Suitable for various drilling devices including lithium drills, hand drills, impact drills, drill presses, magnetic drills, and milling machines Usage Ideal for drilling tough metals including stainless steels, Cr-Ni, and special acid-resistant steels Can also be used for softer materials such as wood, plastic, and