Best Countersink Drill Bits in 2020



AUTOTOOLHOME Combination Drill and Tap Bit 6-32nc 8-32nc 10-32nc 10-24nc 12-24nc 1/4-20nc Set of 6 Review:


Save some time you can Drill and tap.
Found the temper on this to be hard so go slow. Don't use on to thick of steel and you will be fine. Go fast and to thick you will have scrap bits. Not for a impact gun. Snaps off every time. I enjoy testing tools to there limits. I found these to a good light work tool. I would not run them on a jobsite other than a one or to hole job. For a home shop. ....Nice



7PCS Countersink Drill Bit,HSS Drill Bit Set with One Hex Key Wrench and Adjustable Woodworking Chamfering Counter Bits Carpentry Reamer Plated Perfect for Plastic Wood DIY, 3-10mm Review:


Fair price for what I received. Used a couple of the bits with counterbore attached on a few projects. Worked fine on softwoods. Have not tried it on any hardwood yet.



IRWIN Countersink Drill Bit Set for Metal, 5-Piece (1877793) Review:


I've been using these for a couple of weeks now and for the price they're working fine. I dropped them 1 star for needing a sharpen out of the box (holes started looking hexagonal shape). But after a quick sharpen they're running great. Tried them through Plywood, softwood and hardwood. Haven't tried metals yet.

Perfect if you don't want to spend a huge amount.



ORXPLUS TOOLS Deburring External Chamfer Tool, Deburring Drill Bit, Remove Burr Tools for Fit 1/8"-3/4"(3mm-19mm) Review:


During working on my car i had to disconnect the control arm at the ball joint. Its an older VW which still had the ball joint and control arm as one piece. At some point the bolt for the ball joint got stripped near the top. I tried to so many different tools. ie thread file, thread correcting nut.. to no avail.

My new plan was to dremel off the bad bolt threads and then buying a cheaper deburring tool that is all over amazon under different names. I ended up returning the cheaper tool as it barely shaved any metal off the bolt let alone make it so a nut could scrrew go on. Then i found this tool after watching a youtube video. I must say it shaved the bolt down and made it so that the nut could go on. This was my last hope over replacing the whole expensive control arm, and it worked! I attached picks of the bolt after dremel, then after using the orxplus, and then with the nut on!



COMOWARE Countersink Drill Bits Set- 7Pcs Counter Sink Bit for Wood High Speed Steel, Woodworking Carpentry Reamer With 1 Free Hex Key Wrench Review:


The three pointed bits are sharp and stay where you start them. These bits cut through wood very nicely. The countersink flutes are not aggressive so it is easy to control the countersink depths. All in all I think the quality is very good.

Like several other reviewers I have broken the two smallest bits (3&4 mm) while using them in my handheld drill. It is likely that the breaks resulted from poor drill angle control during countersinking operations. I suspect the bits would have lasted fine if they had been used in a drill press. The two smallest drill bits are 3 & 4 mm which are pretty fine and present a challenge in handheld drilling, particularly during countersinking where you are boring a very large diameter hole. You should note that the sizes are metric and the metric bits cannot be readily replaced by fractional inch bits as the rear hole in the countersink fits the drill shaft snugly and an undersized drill bit will be bent under the necessary torquing of the countersink to the bit.



TACKLIFE 9 Pcs Countersink Drill Bit Set with 1 Hex Key Wrench& 1 Storage Bag, High-Speed Steel Adjustable Carpentry Reamer Plated for Wood DIY-CDB01 Review:


 First of all, it did not break like other tools when i tested it on a 2x4 wood. That was the only thing i worried about. Now, that worry went away. They are easy to work with and i really like the pouch to keep things organized and labeled. Take ablook at my demonstration video. I think i am ready for doing projects.



MOHOO Countersink Drill Bits, 7pcs Woodworking Countersink Drill Bits Set, Woodworking Chamfer High-Speed Steel Countersink Drill Bits for Woodworking 3 4 5 6 7 8 10mm With Hex Key Review:


Most everything I do needs to be caulked and painted, which covers a multitude of sins. But, I recent project involving stained oak was different. Normally, I would just allow my drill to do the countersink for me, but since I was staining and not painting, and I was working with a harder wood, I decided to invest a few dollars into the right tools. It made a huge difference, with the toughness of oak Im not sure I could have gotten the screws to countersink any other way. And, the gap that would have resulted from a protruding screw could not be fixed with caulk and white paint this time.



DEWALT Countersink Drill Bit Set #6, #8, #10, 3-Piece (DW2535) Review:


Most everything I do needs to be caulked and painted, which covers a multitude of sins. But, I recent project involving stained oak was different. Normally, I would just allow my drill to do the countersink for me, but since I was staining and not painting, and I was working with a harder wood, I decided to invest a few dollars into the right tools. It made a huge difference, with the toughness of oak Im not sure I could have gotten the screws to countersink any other way. And, the gap that would have resulted from a protruding screw could not be fixed with caulk and white paint this time.



Countersink Drill Bit, Baban Countersink Drill Bit Set 6 Pcs 1/4'' Hex Shank HSS 5 Flute Countersink 90 Degree Center Punch Tool Sets For Wood Quick Change Bit 6mm-19mm only Sold by Moworve Review:


I picked these up after many bad experiences with a countersink bit that included a lead. None of of the counter sink bits that included lead bits I tried were ever true and would always wobble leading to bad pilot holes anyway. I purchased these primarily for wood but they obviously work on metal too. Before these, the only experience I had with this type of countersink bit was the one I picked up from Harbor Freight for 4 bucks. That bit was so bad that I threw it in the trash. I never throw away tools, who does? These bits produce clean counter sinks and they include many sizes. I primary use one of the smaller ones but it makes very quick work. I just leave it in the bit holder of my impact driver fro q