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Jeff Kickthedogband photo
Germany, Berlin
1 Level
709 Review
30 Karma

Review on 4.2Mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit Of 2Pcs With Straight Shank To Cut Through Hard Metals Such As Stainless Steel And Cast Iron, 5% Cobalt M35 Grade HSS-CO by Jeff Kickthedogband

Revainrating 5 out of 5

It worked well as expected

I needed to drill some holes in a 3mm-thick steel plate. It was super easy and fast with this drilling bit. I used a metal screw to punch a small mark at the drilling position first before I started drilling.

Pros
  • 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.
Cons
  • Can be more difficult to sharpen than other types of drill bits.

Comments (1)

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July 20, 2023
I read several reviews reviews that stated they were not 6mm. They are correct in saying the size is under 6mm. Unfortunately I needed to be exactly as specified in the description. This item is useless for my purpose.