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Drill Bit Sharpness
Customers are generally positive about the sharpness of the Cobalt Drill Bit Set, with many reporting excellent performance in drilling various materials including aluminum, steel, and PCBs. However, a small number of customers were disappointed as they found the bits did not meet their expectations when drilling into hard metals.

Highlights
Quality
I am impressed with the quality of these bits.
These drills are just what i needed to clean up 3d printer parts
And the storage case is very rugged thick plastic.
I had bought a two pack previously, shown in the pics, and those bits burnt the tips within five seconds of drilling.
Price
Amazing set of bits for the price.
Very nice set for the money, complete set of smaller sizes, able to work on many different materials.
Overall, a good value for the price.
For the cost, these are handy to have around the shop for that occasion when you just need to tap a metric thread.
Competitiveness
It is impossible to find metric sized drill bit sets in the us, and this set is perfect for what i have in mind.
Overview
- How are reviewers describing this item?
set, good, metric, sharp and needed. - Our engine has profiled the reviewer patterns and has determined that there is minimal deception involved.
- Our engine has discovered that over 90% high quality reviews are present.
- This product had a total of 486 reviews as of our last analysis date on Jan 22 2025.
Helpful InsightsBETA
Posted by a reviewer on Amazon
But could use more of each type
Posted by a reviewer on Amazon
Small drill bits are fragile and theyll break at some point
Posted by a reviewer on Amazon
So when using them never apply to much pressure
Posted by a reviewer on Amazon
But now ill have them forever if i need them again and halloween is coming up
Posted by a reviewer on Amazon
Ill just drop it in with their candy
Posted by a reviewer on Amazon
I suspect theyre great for drilling but i needed to use them as 34pin34 gauges
Posted by a reviewer on Amazon
Unfortunately there were two drill bits missing from my set 6
Posted by a reviewer on Amazon
I had bought a two pack previously shown in the pics and those bits burnt the tips within five seconds of drilling
Review Count History
Price History
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