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Finland, Helsinki
1 Level
706 Review
57 Karma

Review on Professional Grade 10Mm Cobalt Steel Twist Drill Bit - Heat Resistant For Stainless Steel And Cast Iron - Straight Shank Design - M35 Grade HSS-CO With 5% Cobalt - 1 Piece by Ben Jacobson

Revainrating 1 out of 5

Inaccurate good for me

The drill bit was not sharpened correctly from the factory and it drilled a hole way bigger than it should have. It should drill .492" dia and it drilled .509"!l

Pros
  • Used for 6160 aluminum drill hole exactly to size
Cons
  • Requires more force and pressure to use compared to standard drill bits

Comments (2)

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July 22, 2023
Worked OK to drill through 6062 aluminum. Didn''t drill a lot of holes but enough to know at least it''s not a garbage drill like some.
July 13, 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.