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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
236
Review
 3.8 out of 5
236 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.
236 Customer Reviews

Quality tool

Works as advertised

June 10, 2026
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Excellent quality

Would Recommend
June 10, 2026
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does the job but needs improvements

Would Recommend

great bits does the job of making a hole for the screw to go into flush but they only thing i don't like is they don't last very long. i used one of my other drill bits to finish my deck because the bits are to narrow at the top and break to easy.

June 2, 2026
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Definetly worth doing the set of three over the su

Would Recommend

Great set for a great price

May 28, 2026
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use eye protection

Would Recommend

worked perfectly

May 18, 2026
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Clogs easy

Would Not Recommend

The tapered bit wirks great but the cutters on the counter-sink portion clog easily and dont prevent splintering. Would be better if it were like a forstner bit and cut the circle screw head sized and then the counter-sink.

May 16, 2026
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Quick and simple

Would Recommend

Speed bits

May 13, 2026
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Bolt that makes but adjustable didn’t work.

Would Not Recommend

The bolt that made the bit adjustable didn’t work with one of the bits.

May 11, 2026
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Countersink

Would Not Recommend

#10 broke immediately

May 11, 2026
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I got my money’s worth.

I liked that it was easy to adjust and I got about 500 uses before I snapped it.

May 9, 2026
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Great Counter sink's

Would Recommend

Seem to be great quality, and are adjustable.

May 6, 2026
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Works great on composite deck

Works great

April 28, 2026
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