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3 -Piece Assorted High-speed steel Countersink Twist Drill Bit Set

Ratings & Reviews for Kobalt 3 -Piece Assorted High-speed steel Countersink Twist Drill Bit Set

3.8
246
Review
 3.8 out of 5
246 Reviews


68% Recommend this product

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.
246 Customer Reviews

Works Well But Drill Bit Broke

These tapered drill bits and countersink work well. Regrettably, the #6 size bit broke off at the countersink while tightening the drill bit depth set screw. Had to go to Lowes to exchange with new set.

July 5, 2023
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Would Recommend

counter sink bits work well

May 20, 2023
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Good enough

The design is good for general use, but this type of countersink always seems to clog quickly and stop cutting. They will do in a pinch

April 26, 2023
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Don’t waste your money.

Would Not Recommend

It broke after just a few holes. I returned it immediately.

April 2, 2023
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These three bits cover most DIY needs.

Would Not Recommend

This style of pilot hole bits is, by far, the best in my opinion. There re other, less expensive models available, however this style actually works to keep the wood from splitting because of the longer pilot bit. The actual size of the #8 bit was a little loose for my preferences, but the #6 size worked great for #8 screws.

March 23, 2023
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Not heavy duty.

Would Not Recommend

The shaft that connects the bit to the drill (the connector ) came off of the bit during the first use. However i was able to chuck the drill up onto the shaft of the bit and fi ich the project.

September 4, 2022
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3rd set I brought and shaft breaks again

Would Not Recommend

I love these drill bits if they just didn't keep breaking at the shaft. I've brought these 3 times and everyone has broken at the shaft where the hex connector goes over the end of the drill bit. Seems like they glues these on :(

August 9, 2022
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Hopeful

Would Not Recommend

Super hopeful for these, I like that the drill bit is tapered, however first use the drill bit broke off of the spindle. I can slide it back on the spindle but I cant get it to stay without spinning freely. Bad design unless I am doing something wrong

July 15, 2022
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Not a real good buy, just okay.

It started working real good but the small drill bit broke and the fixture came apart.

May 7, 2022
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Base Seperated

Would Not Recommend

I purchased these as the only countersink option and the first time I used them the hexagon base separated from the drill bit. I was still able to finish what I was doing without it, but the manufacturing quality sucked.

April 11, 2022
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Worked well, then it fell apart.

Would Not Recommend

I've used similar products, usually from other manufacturers like Dewalt, and they typically last a year or two until one one of my kids snaps the bit trying to drill at an odd angle (Frustrating, but worth it to have time with the kids. Short help is better than no help at all.). These were the only bits of this type available at my local Lowes, so I thought I'd give them a try. I was having no problems with these bits. I finished 2 projects (one with treated pine and the other with pine p...

April 5, 2022
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Absolutely Garbage

Hex shank broke off the bit after only 3 holes this is a joke dont buy it waste of money

March 16, 2022
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Fell apart after a few holes

Would Not Recommend

Hex base came loose after 20 holes…in soft wood. Returned and bought 2nd thinking it was a fluke. 2nd one did the same thing. Will be returning it as well. Clearly defective manufacturing technique.

March 12, 2022
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Horribly Cheap

Would Not Recommend

The first couple of seconds I used to this for the first time, the tail end spun and broke off. This is horribly cheap.

March 11, 2022
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