luwiscook HSS 5% Cobalt Jobber Drill Bit Set, 3.5mm 10pcs M35 Twist Drill Bits, 135° for Stainless Steel, Hard Metals, Cast Iron, Aluminium and Copper, Stored in A Plastic Box

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  • Premium Material Professional cobalt drill bits, made from M35 High-Speed Steel containing 5% cobalt and manufactured strictly in accordance with DIN 338 standards, ensuring the drill bits deliver superior performance for all types of professional drilling tasks
  • Wide Application These 3.5mm M35 HSS drill bit set are designed for professional machining of various materials, including metals, cast iron, copper, high temperature alloy, titanium alloy, aluminum, hard plastics and woods, etc. Adeptly handling different working conditions
  • Efficient Processing and Precise Drilling 3.5mm cobalt drill bits set are equipped with 135 split point,these cobalt drill bits straight handle design can adapt to various drilling machines and power tools, such as bench drills, handheld drills, impact drills, etc
  • Perfect Heat Resistant luwiscook M35 HSS cobalt twist drill bits undergo high-temperature quenching treatment, the Room temperature hardness reaches HRC65-67. At temperatures of 500 600 C, hardness remains above HRC58-60. Offering high wear resistance and strong toughness (Using cutting oil will further extend the service life)
  • Practical Drill Bits Set This drill bits set includes 10pcs 3.5mm straight-shank cobalt twist drill bits, stored in a plastic case. It's the perfect choice for professionals, DIY enthusiasts, and home improvement lovers

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