
Ratings & Reviews for DEWALT 14 -Piece Assorted Assorted Cobalt alloy steel Jobber length Twist Drill Bit Set
Ratings may include incentivized customer reviews.
What Customers Are Saying
The cobalt drill bits demonstrate mixed performance. Many users report the bits effectively drill through hardened steel, stainless steel, and other tough materials, with some describing them as highly capable. However, a significant number have experienced issues, including bits breaking, dulling, or failing to meet expectations, especially with smaller sizes. While the bits appear well-suited for challenging drilling tasks, the quality and durability seem inconsistent. Users recommend caution, slow speeds, and cutting oil when drilling, especially with smaller bit sizes.
Customer review summary generated by AI, including incentivized reviews.best bits money can buy. Cobalt steel.
Would Recommendextremely sharp, stays sharp
Verified Purchaser
worst bits I've used
Would Not Recommendbought these to try to drill out a rusted bolt.got nowhere. broke 2. regular gold colored "titanium" bits work better
Cobalt drill bits.
Would RecommendThey drill easily through hardened steel .
Verified Purchaser
flimsy
Would Not Recommendbit broke first time i used it
Verified Purchaser
Hello asdf. We appreciate your feedback on the DWA1240. Your satisfaction is our top priority. Please contact support at WECARE@sbdinc.com and in...
Recommended
Quality and value. Exactly what I needs to get the job done
Verified Purchaser
cobalt bits
Would Recommendonly used once so far, worked as well as expected
Verified Purchaser
Good set of bits.
Would RecommendExcellent drill bits. Tips stay in place when drilling. I did not like the bulky case the set is stored.
Verified Purchaser
Good Bits if the black and golds arent enough
Would RecommendMuch better than the basic black and gold set, I work in a environment where i cant use any oil to keep the bits cool. These work fast and stay far cooler than the black and gold set. I am still not convinced if I like the pilot point or not.
Verified Purchaser
I used these along with the Mach Blue Goo
Would RecommendGood for hard materials
Verified Purchaser
Not good for hardened steel.
Would Not RecommendThese bits are not good for hardened metal applications. I will be returning them. According to the person working at the store, these are the best bits for hardened steel. I dulled 4 bits in less that 5 minutes with no progress.
Verified Purchaser
Hello GY REB Thank you for taking the time to provide your feedback. I'm sorry you weren't pleased with the DWA1240. Your feedback is valuab...
Great bits
Would RecommendVerified Purchaser
Don’t waste your money
Would Not RecommendWent dull on very first drill. Was drilling into brick
Verified Purchaser
Hello Russ. We appreciate your feedback on the DWA1240. Your satisfaction is our top priority. Please contact support at WECARE@sbdinc.com and i...
Sharp Bits, Poor Case
Would RecommendGood sharp bits but labeling is incorrect. Says 2 bits are both 1/8. Also the case latch is a little cheap. I'm happy with the drill bits, not sure I'd purchase again.
Verified Purchaser
We would like to thank you for your feedback. We welcome all feedback from our customers, so that we may continually improve not only our product but...
Works quickly
Would RecommendI needed to drill a steel plate wall hanger to mount with wall anchors. Less than 5 seconds it was done.
Verified Purchaser
Hello ryan, your feedback is valuable as we take into consideration every piece of feedback that we come across. We have documented your comments and...