Cobalt Drill Bits are actually high-speed steel (HHS) drill bits with Cobalt added to the steel formula. There are different grades, types and uses for Cobalt Drill Bits. Drill Bits made from high speed steel and cobalt can often be identified by the letters (HSS-Co). The following will give some insight to Cobalt Drill Bits.
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What are the two grades of Cobalt Drill Bits?
M35 is a grade of Cobalt Drill bits with 5% Cobalt added to its formula to increase heat resistance.
M42 is a grade of Cobalt Drill bits with 8% Cobalt added to its formula because of its ability to resist wear and is less prone to chipping compared to the same bits made of carbide.
What Industries are Cobalt Drill bits most commonly used in?
Cobalt Drill bits are often found in the Aircraft and Aviation industries.
What are the most popular Cobalt Drill Bit types?
The following are the most popular types of Cobalt Drill bits:
- 6" Extended length
- 12" Extended length
- Jobber length
- Fractional measured
- Numbered measured
What metals do you use Cobalt Drill Bits on?
Cobalt drill Bits are used for drilling in tough, high tensile strength materials like stainless steels, titanium and inconel.
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