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4 -Piece 1/8-in Assorted 1-5/8-in High-speed steel Countersink Twist Drill Bit Set

Ratings & Reviews for Kobalt 4 -Piece 1/8-in Assorted 1-5/8-in High-speed steel Countersink Twist Drill Bit Set

4.2
146
Review
 4.2 out of 5
146 Reviews


83% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The product received mixed reviews. Many customers praised the quality and performance, noting the bits were sharp, made clean countersinks, and had a useful adjustable depth feature. However, some experienced issues with durability, reporting the bits broke or became dull after limited use, especially when drilling into harder woods. A few felt the pilot holes were not long enough for one-step drilling and countersinking. Overall, the consensus is this is a good quality, affordable set that works well for softer woods, but may not hold up as well for more demanding applications.

Customer review summary generated by AI, including incentivized reviews.
146 Customer Reviews

Counter sink drill bit

Would Recommend

They work really well.

June 21, 2026
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Inexpensive and worked well

Would Recommend

Inexpensive, worked well

June 17, 2026
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Awesome fit with the Kobalt flip driver

Would Recommend

Great price for these option pieces

June 17, 2026
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good but caution...

Would Recommend

the quality seems good but avoid by impatience; CUT the package open. fight the urge to use the bits themselves by bending the cardboard piece. I bent 3 of the bits!!

June 10, 2026
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But functions but not with socket.

Would Recommend

Bit function as advertised but does not work well with holding assembly.

May 28, 2026
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Total Junk

Would Not Recommend

Bought these 6 May 26. Opened the package, put in drill. Not one of the 4 turn straight. they wobble almost 1/4" at the tip. I cannot remember a time in my life I have bought such a terrible product. Please don't waste your time or money on this junk. Shame on you Kobalt.

May 6, 2026
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Quality product

New, in package purchase. Worked well, durable

April 30, 2026
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They're pretty well made.

Would Recommend

They're helpful.

April 16, 2026
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fits american standard plugs

Easy to use

April 16, 2026
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Caution with plyboard

Would Not Recommend

Need to pay attention when drilling into the ends of 1/2" plyboard as the lack of depth may cause the screw to split the board.

February 22, 2026
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Easy options

Would Recommend

Like it Offers options but disappointed the entire set in a case is no longer available.

December 30, 2025
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nice set to have with the drill driver bit kit

Would Recommend

I like the different sizes of the drill and counter sink bits for the drill driver bit kit

November 29, 2025
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The bit is not sharp as it should be

Would Not Recommend
November 20, 2025
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