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Frank Garahana photo
Finland, Helsinki
1 Level
739 Review
46 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 Frank Garahana

Revainrating 5 out of 5

Drills correct diameter and round hole.

I used it for drilling brass. I drill an accurate diameter hole. It has a reasonable finish. I can add no other comments as it has not been used long enough to evaluate it.

Pros
  • The bit withstood some heavy drilling and did the job I bought it for, drilled some steel with it.
Cons
  • Can be difficult to find replacement bits in some areas.