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The Irwin Tools 63115 15/64-Inch Cobalt 135-Degree-Jobber Length-Bulk - Pack of 12 is made of M35 Cobalt Alloy Steel. The Cobalt Alloy Steel helps discipate heat, which is the killer of all drill bits, providing it with longer life and more durability. The Cobalt Alloy Steel construction allows this bit to drill abrasive materials like Stainless Steel and Cast Iron which are extremely tough on traditional high speed steel drill bits. The bit has a 135-degree split point tip to help eliminate walking as you start to drill the hole in metal. The straight shank works in both keyed and key-less chucks.

Features

  • Shorter cutting lips reduce torque for drilling in high tensile strength materials.
  • Heavy duty spiral flute design produces faster chip ejection
  • Constructed of M-35 5 percent cobalt alloy high speed steel for super abrasive resistance in tough metals
  • 135-degree split point reduces feed pressure for easier penetration without work hardening
  • Size: 15/64 in
  • Length: 4 in
  • Flute Length: 2.625 in
  • Shank Diameter: 15/64 in
  • Weight: 0.037 lbs
  • Material: M-35 Cobalt Alloy Steel
  • Bit Type: Jobber
  • Point Angle: 135
  • Tip Style: Split Point
  • Country of Origin: China
  • Power Source: Non-Energy Using
  • Warranty: None