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Cobalt Drill Diameter Drilling Aluminum Review

2

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Very good

Revainrating 4 out of 5  
Rating 
4.0
🪚 Industrial Drill Bits, 🔪 Cutting Tools

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Description of Cobalt Drill Diameter Drilling Aluminum

Made of m35 steel, includes 5% cobalt, high hardness, stable performance. 135-degree split-point tip starts drilling immediately with less force and eliminates. Ideal for drilling on stainless steel, cast iron, sheet metal, steel plate, angle iron. With high surface finish, high grinding precision , the blade is sharp and durable in use. It is widely used in the drilling of stainless steel plate, automobile spring steel and die steel.

Reviews

Global ratings 2
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  • 4
    2
  • 3
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  • 2
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  • 1
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Type of review

Revainrating 4 out of 5

Efficient drilling for industrial use

This drill bit is a game-changer for industrial and scientific drilling. Its cobalt construction ensures DURABILITY and efficiency, making it perfect for drilling through tough materials like aluminum .The bit is precise and accurate meaning less wastage and more productivity. The only downside is that it may be too specialized for personal use. Overall, I highly recommend this industrial drill bit for anyone who needs reliable and efficient drilling tools..

Pros
  • Efficiently drills through aluminum with precision
Cons
  • May produce excessive heat and chip buildup if not properly lubricated

Revainrating 4 out of 5

I had to sharpen it myself before it worked

tries to drill approx. 1.5 mm thick stainless steel. I tried 2 bits and none of them drilled, so I hand sanded one and drilled lightly through the stainless steel. That's why I avoid coated bits - unlike these, they can be sharpened! the price was fair and the material is good and i know how to sharpen a drill.

Pros
  • made of M35 steel, contains 5% cobalt, high hardness, stable operation
Cons
  • questionable purchase for older people