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Cobalt Straight Shank Twist Drill


Cobalt Straight Shank Twist Drill

  • 【M35 COBALT HIGH SPEED STEEL】- drill bits for metal made from M35 Cobalt High Speed Steel and contain 5% Cobalt, which increases wear-resistance, durability and extra longer life span, so that the drill bits last through multiple uses
  • 【135° SPLIT POINT】-135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure. Straight shank of this cobalt steel drill bit allows for firmly holding and accurate centering and makes drilling precise and faster
  • HSS Titanium Coating】- Classic HSS Construction With Titanium Coating For Capability And Durability. The Cutting Edge Is Hardened And Honed For Sharpness.
  • Flutes Form】- 2 Flutes Form Helps Clear Chips And Debris Away From The Bit, Decreasing Friction And Heat For A Faster, Cooler Drilling Process, Chatter-Free Design With Staggered Cutting Teeth Ensure The Precise Countersinking And Hole Smooth Clean.
  • 【For Metalworking】- Particularly Successful In Cutting Through Hard Metals(Hardness Less Than Hrc38°) Such As Stainless Steel And Cast Iron,  They Can Be Used For Softer Materials Like Copper And Aluminium, Too. Not For Hardened Steel And High Carbon Steel.

Size Chart

Product Show


10.0 mm,1 PCS, 11.0 mm,1 PCS, 12.0 mm,1 PCS, 3.0 mm,2 PCS, 4.0 mm,2 PCS, 5.0 mm,2 PCS, 6.0 mm,2 PCS, 7.5 mm,1 PCS, 8.0 mm,1 PCS, 8.5 mm,1 PCS, 9.0 mm,1 PCS


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