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21 -Piece x Set

Ratings & Reviews for Kobalt 21 -Piece x Set

4.0
374
Review
 4.1 out of 5
376 Reviews


75% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The adjustable countersink drill bit is generally well-received, with users praising its ability to drill and countersink holes in a single operation. The adjustable collar allows for easy depth control, which is appreciated for tasks like cabinet and furniture installation. The bit works well on various materials and is reported to produce clean, professional-looking results. However, some customers have experienced issues with the bit breaking, becoming loose, or wearing out faster than expected. A few users also found the bit to be a bit "wobbly" or off-center, which could affect accuracy. Overall, the tool seems useful for many DIY and woodworking projects, but the quality and durability may vary.

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

Good to have

Would Recommend

This is the size I use most frequently, so I’m glad to buy it individually.

May 15, 2026
From 4.35mm #8 x Standard High-speed steel Countersink Twist Drill Bit Verified Purchaser
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Works well. This is the one you wanted.

Would Recommend

No dislikes

May 9, 2026
From 4.35mm #8 x Standard High-speed steel Countersink Twist Drill Bit Verified Purchaser
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Nice bot

Works liked planned

May 7, 2026
From 3.55mm #6 x Standard High-speed steel Countersink Twist Drill Bit Verified Purchaser
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Great tool

Would Recommend

Works great

April 28, 2026
From x 1-5_SLASH_8-in High-speed steel Countersink Twist Drill Bit Verified Purchaser
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Speed and Precision.

Would Recommend

Bit has a good point for precise drilling. Fast starting, bit cleans well. Would be nice to have a stop on the countersink.

April 26, 2026
From 3.55mm #6 x Standard High-speed steel Countersink Twist Drill Bit Verified Purchaser
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Countersink

Would Recommend

Stocking up on drill bits for upcoming project and needed the countersink. Product is great.

April 23, 2026
From 3.55mm #6 x Standard High-speed steel Countersink Twist Drill Bit Verified Purchaser
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Great little countersink

Would Recommend

Did exactly what I needed it to do!

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Great product

Would Recommend

Works great

April 16, 2026
From 3.55mm #6 x Standard High-speed steel Countersink Twist Drill Bit Verified Purchaser
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Great product!

Would Recommend

Does the job great!

April 6, 2026
From 3.55mm #6 x Standard High-speed steel Countersink Twist Drill Bit Verified Purchaser
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Works great

Would Not Recommend

Great product

April 2, 2026
From x 1-5_SLASH_8-in High-speed steel Countersink Twist Drill Bit Verified Purchaser
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