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

Name: 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
Item: 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
Rating: 5

June 24, 2023

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.

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