DeWalt has quietly released a brand new line of countersink bits that aim to solve one of the most frustrating parts of metal and woodworking: chatter. If you are looking to upgrade your drilling game, this new 5-piece set features a specific design change that promises smoother finishes and cleaner holes across multiple materials.
What’s New with DeWalt Countersinks?
DeWalt is rolling out these new bits in both a 5-piece set (DWAMDB5SETCS) and as individual units ranging from 1/4″ to 3/4″.
The standout feature here is the 5-flute design. While many standard countersinks use a single flute or fewer cutting edges, moving to five flutes drastically reduces vibration. This means you get a cleaner, more circular countersink without that choppy “chatter” pattern that ruins the look of your project.
Key Features & Specs
These bits are part of DeWalt’s “Black & Gold” line, known for decent corrosion resistance and durability. They feature an 82-degree tip, which is the industry standard for most flat-head screws you’ll find at the hardware store.
Here is the breakdown of the new model numbers:
1/4″: DWAMDB16CS
3/8″: DWAMDB24CS
1/2″: DWAMDB32CS
5/8″: DWAMDB40CS
3/4″: DWAMDB48CS
5-Piece Set: DWAMDB5SETCS (Includes all sizes above)
I am excited about the shift to a 5-flute design. If you have ever used a cheap single-flute countersink on steel, you know it screams and bounces all over the place. These should cut much smoother. However, take note of the shanks—these appear to be standard round shanks, not 1/4″ hex quick-connect shanks. That means they won’t lock directly into your impact driver, so you’ll need to keep them in a standard drill chuck.
Where to Find Them
These are starting to pop up at major retailers now. Since this is a brand new launch, prices are fluctuating, so check the links below for the best current deal.
- Precision milled and ground to an 82° tip, suitable for most machinable materials (iron, steel, soft metals, plastic, wood)
- Black oxide finish for improved corrosion resistance
- Universal compatibility—fits all drills with a 1/4-inch shank
- Heavy-duty construction for increased durability
- For Use On: Metal, wood, soft metals, plastic, PVC, and fiberglass (not recommended for stainless steel)
Promotion availability and prices can change at any time on Amazon. Information included on this page is accurate as of 2026-01-06 at 05:00 CST.
About the Author
My name is PJ, and I’m the founder of Struggleville.net and TheStruggleville YouTube channel. Since 2015, I’ve been a full-time professional tool reviewer and deal hunter. I post new content daily to do the heavy lifting for you—I find the deals, test the tools, and report on the latest industry news. My mission is to help you spot the real value from the marketing gimmicks so you can build a high-quality workshop for less.