Ratings & Reviews for Kobalt 3 -Piece Assorted High-speed steel Countersink Twist Drill Bit Set
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers praise the product for creating clean, precise countersinks and pilot holes with adjustable depth control, and many report professional results on woodworking projects like decks and cabinetry. The three-piece set covers multiple sizes effectively. However, a substantial portion report premature failures, particularly at the hex shank connection, with bits snapping or coming loose after just a few uses even in soft wood. Reviewers describe the metal as feeling cheap and fragile. While functionality impresses initially, durability concerns and structural design flaws leave many questioning long-term value.
Customer review summary generated by AI, including incentivized reviews.They work as advertised
Would RecommendEasy to use and adjust
Verified Purchaser
One and Done
Would RecommendAnybody who has used one drill to drill, countersink, then drive screws has already invented this product in their head. Here it is, larger than life. The shaft of the bit is tapered, so it better aligns with the shape of your screw, maximizing thread bite while also helping to prevent the tip from skating along the surface. It's a dream upgrade for somebody who's suffered like me for so long because they already had the dang dedicated countersink bit. You can adjust the depth of the countersin...
Verified Purchaser
High quality
Great! I used them for testing on my YouTube channel where I review tools. Dguard24_tools_projects
Verified Purchaser
Works
Would RecommendCountersunk without issue
Verified Purchaser
3 piece drill bit countersink combo
Easy to use, quick and clean countersink.
Verified Purchaser
As described
Would RecommendWork well good quality
Verified Purchaser
Quality Drill Bits
Would RecommendThese drill bits work flawlessly.
Verified Purchaser
all in all a great product
Would RecommendQuestionnaire about 3-piece countersink bit: 3 November 2025 I had bought the #8 bit a while back and was very happy with it, even using it successfully for #10 screws. Now, however for a current project I definitely needed a dedicated #10 countersink and after investigating the pricing for same, realized I would be ahead buying the 3-pice set which includes the #6 bit which I’ll need anyway for a future project. All in all a great product, and to my knowledge the only one of its type on the...
Verified Purchaser
Cheap metal
Would Not RecommendBroke the third time using it
Verified Purchaser
Good buy
Would RecommendHappy with the quality of the drill bits, excellent price too!
Verified Purchaser