Gold Cobalt Twist Drill Refills

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Product Description

These cobalt twist drills are made of very hard steel that is used especially in high speed tools. These twist drills will drill through stainless steel, chrome-nickel, and other hard metals. They are particularly ideal for drilling platinum. And they last up to 30 times longer than standard drills!

  • Made of very hard steel
  • Stainless steel, chrome-nickel, and other hard metals

**It is highly recommended that you use water or coolant when working with these drills**

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