Best Countersink Drill Bits of 2025

“I had a product years ago that wasn’t as efficient. After moving back to a house, I ordered this set, and a week later, I found it very useful. The tools are well made, especially the tapered drill bits and the depth adjustment for countersinks. I expect to make several screw holes a year, so I believe it will hold up well.”

“As part of our family hardwood flooring business, we often need to drive screws through hardwood. These tapered pilot hole drills are perfect for the job. They last a long time and don’t break when used with an impact driver.”

“I bought a different bit set that was just okay, but the holes had flat bottoms. That's why I chose this set instead; it creates truly tapered holes and connects to my drill with a 1/4" Hex Shank Quick Change. I am much happier with the quality!”

"I've been using Irwin cutting tools for years and was eager to try these after spotting a deal on Amazon. Although they are made in China, the quality and performance seem comparable to the Irwin products I’ve relied on from the U.S. So far, they've been performing well."

"I've only tested two of the countersinks, but they are impressively sharp and function flawlessly! They are exactly what I expect from IRWIN. Pros: high quality and sharpness. Cons: none to mention. Overall, it's a great tool set!"

"As someone who's used an Irwin 5/8" countersink for 30 years, I was looking for a set with different sizes. The quality of this set seems just as good as my original. I do wish it came with a storage container, as the clamshell packaging isn't ideal for organization."

"I find this set to be great value, and I really appreciate the extra bits and set screws it comes with."

"After using the #12 countersink drill, I had a little trouble when the drill bit got stuck in the wood, but overall, it worked well for 420 holes."

"With over 40 years of woodworking experience, I'm impressed by this countersink/drill combo; it saves time and delivers a professional-looking assembly."

"I really appreciate the good design and durability of this set. The hard case is a great addition, keeping everything organized."

"I've been using these bits for woodwork, and they perform very well. Just remember to clean the plug cutter frequently when drilling a lot."

"I don't usually write reviews, but after using this set, I felt it was important. The selection of bits is wide, but I noticed a bit of side-to-side slop. Unfortunately, one of the bits snapped on my last hole, which was a setback for my project."

"I took a long time to decide on this countersink bit, but I'm so glad I finally made the investment. It cuts nice countersunk holes and is easy to adjust. The feature that prevents marring on the wood surface works perfectly and ensures a consistent depth every time. It's a great product!"

"I've used various countersinks before, but this one stands out. I got clean holes without any edge breakout on pine plywood. I appreciate its adjustable drill bit and countersink depth, allowing me to create repeatable countersink holes quickly and efficiently. The only minor downside is that the collar can block my view during use, but I’m getting used to it."

"This tool functions well, but I did have an issue with it snapping in half after a few dozen uses. I find it a bit puzzling why a hollow part was used in the design. While it's expensive, it works well overall, and I enjoy using it despite this minor concern."

"I was focused on getting countersink bits, and I completely missed the case they come in. I really like the case! The bits are decent quality, and the price-to-quantity value is excellent. They save me time and effort."

"I replaced my old Vermont American countersink with these. The five flutes provide a nice, centered countersink without any wobbling, which is a huge improvement."

"The case these countersinks come in is impressive. It keeps everything organized, and while they cut better than my previous four-tooth ones, there is still a bit of chatter in the holes. They fit well in my drill."

"I picked up these bits for a project with poplar that required a countersink. This is my first experience with a countersink bit, and I found it worked with minimal resistance, creating a perfectly sized hole for my #8 screws. There was some cleanup needed before painting, but overall, they performed nicely. I'm unsure how well they'll hold up in harder woods, but for a beginner or occasional use, they work great. I just wish they included a storage case, but it's hard to complain at this price."

"I've generally had a good experience with Bosch products, and these bits are no exception. However, I had an issue while using the #6 bit on a pressure-treated 4x4 to create a circular saw jig; it broke while working on the second hole. I guess it might have been too much for the bit. After replacing it, I noticed the new bit doesn't adjust or perform the same as the original. Overall, it's a cool piece."

"Being old school, I've always used separate drill and countersink bits. After a recommendation, I decided to try this kit. I wish I had tried them sooner! The quality is impressive, and it does exactly what it's supposed to do. Highly satisfied with the performance."

"I used these to countersink bored holes in my project. They worked great for making the heads of large screws flush."

"To me, it seems like a high-quality product at a fantastic price."

"I haven't had much time to test these tools yet, but they look fairly decent and well built."

"These countersinks replaced my old, dull ones, and they performed wonderfully on the first test. They are sharp and left a nice clean countersink in soft wood."

"My husband, who is a contractor, really loves them."

"However, I must say, I was quite disappointed with the set. As an engineer, I found this product to be below expectations."

"This set is awesome! At big box stores, these bits that can countersink through metal are going for $12 and up a piece! It was a total no-brainer cost-wise, and they are very high-quality. I'm building my home and this set has made my countersinking needs wonderful. I love the sweet little tidy box it comes in. Irwin is good!"

"I appreciate that I don't have to drill a hole ahead of the countersink. I have some that come with a drill bit and sometimes I end up drilling too far. It’s handy to just grab one of these to make my countersink."

"I wanted a good countersink set for my red/white oak project. I was worried my old, cheaper countersinks would tear out the screw holes. I set these in my drill press and they worked very well. They are sharp and solid—I expect them to last a long time for my general homeowner projects. The price is very good given the number of pieces!"

"I've used these DeWalt spiral drill/countersinks for years while building an ipe' deck. The three sizes included are a good combination for most screws. Just be cautious not to overheat them, as they can break. Overall, they cut well and stay sharp, which I appreciate for clean screwing."

"These bits have been a great addition to my woodworking. I recently built drawers for a pantry and wanted the screws to be countersunk and hidden. The sharp points on these bits make it easy to drill exactly where I need without wandering, which is especially useful on softer woods like pine."

"As a beginner, I was curious about these drill bits after seeing them in videos. Trying them out has been a game changer for me. The ability to adjust the drill length is fantastic, making the whole process much smoother and more enjoyable."