EZARC Countersink Drill Bit Set, 12 PCS Counter Sink Drill Bit Adjustable, #4, #6, #8, #10, #12, Magnetic Extension bit Holder for Woodworking with Storage Box
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Availability:
In Stock.
Arrives
Monday, Mar 2
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Features
- Unique Two-Flute DesignFeaturing a dual-edge cutting design, these countersink drill bits eliminate chatter and ensure smooth, precise finishes. Compared to single-blade bits, they offer faster cutting, ideal for larger or deeper countersinks.
- Upgraded 12-Piece SetThis EZARC countersink drill bit set includes 5pcs Countersink bits (#4, #6, #8, #10, #12), 5pcs Replaceable drill bits, 1pc 60mm Magnetic Extension bit holder, 1pc Allen Wrench,Storage Case.
- Strong and DurableCrafted from premium titanium-coated high-speed steel, the countersink bits are perfect for use on both softwood and hardwood. The upgraded chamfer blade with a stepped design minimizes cutting resistance and maximizes durability.
- Efficient and Clean DrillingDesigned with sharp blades and an 82-degree countersink angle, these bits deliver fast, clean pilot holes for a snug screw fit. All-in-one drilling, countersinking, and counterboring maximize efficiency.
- Versatile ApplicationEquipped with a 1/4" hex shank, these countersink drill bits are compatible with a wide range of tools, including impact drills, including hand drills, bench drills, and electric drills. Adjustable depth settings accommodate various wood thicknesses, though extended use on hardwood is not recommended.
Material: High Speed Steel (HSS)
Finish Type: Titanium
Shank Type: Hex
Cutting Angle String: 82 Degrees
Brand: EZARC
Material: High Speed Steel (HSS)
Finish Type: Titanium
Shank Type: Hex
Cutting Angle String: 82 Degrees
Brand: EZARC
Tool Flute Type: Spiral
Surface Recommendation: Wood
Number of Flutes: 2
UPC: 810151451831
Set Name: 12-Piece Set
Unit Count: 12.0 Count
Manufacturer: EZARC
Number of Pieces: 12
Package Dimensions: 4.92 x 4.88 x 0.67 inches
Item Weight: 7 ounces
Item model number: 80331012
Date First Available: January 6, 2025
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If you place your order now, the estimated arrival date for this product is:
Monday, Mar 2
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Past experience had led me to try to avoid buying any item that "cuts" from China. That includes chisels, Forstner bits, drills etc. Performance has ranged from mediocre to worthless. EZARC Countersink Drill Bits are none of that. Out of the package, immediately it was obvious the machining and finish on these countersinks was good. When chucked in my drill press and with the press turned on, I noted that the drill bit in the countersink ran very true with no wobble or runout. I did not see any misalignment with the chuck and had no problem positioning the drill at the marked spot on the wood. Cheaper sets wobble so bad it's hard to find center. I tested on Poplar, Walnut, and 125 year old white oak and the result was a very smooth countersink and though the oak was extremely hard, the cut was clean with no burning. Being a retired machine designer and engineer I am no stranger to machining processes. Final verdict is that the money was well spent, I do not regret buying this set, and will put it to good use. Not my place to tell people to run out and buy them but you could do a lot worse buying a cheaper brand.
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Reviewed in the United States on October 19, 2025 by Larry From Alvaton
These countersink drill bits are sharp and well made, and certainly perform the job designed to do. I do recommend them.
Reviewed in the United States on January 1, 2026 by Daniel
For the cost, this is an excellent set. I successfully used the #8 on some ipe, a really hard wood. The only problem was that the set screw came loose and the drill bit fell out. Putting it back wasn’t a problem, but I had to tighten it very hard, after which it stayed in. The only problem then became loosening the set screw! I suspect it would have been better to have 2 set screws working together, but that would probably make the set more expensive. It claims to be made of High Speed Steel with a titanium finish (whatever that means). Durability is yet to be tested.
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Reviewed in the United States on November 24, 2025 by A. Michelson
Nice set- works well
Reviewed in the United States on January 13, 2026 by Matt in Va
These bits cut well and leave a clean countersunk hole. Extra drill bits are nice at this price point. Overall, an easy recommendation if you are looking for a countersink set for shop or job site use.
Reviewed in the United States on December 20, 2025 by Mtdpaiste
Works great and the case keeps everything together.
Reviewed in the United States on December 7, 2025 by Avid Hunter
As described in the ad. Fast shipping. Would buy from again.
Reviewed in the United States on January 18, 2026 by Famah Smith
Purchased these rather than drill and changing to a counter set bit. These drill the right size hole and counter sink in one motion. Nice plastic case to hold the various sizes. I like them.
Reviewed in the United States on September 18, 2025 by LK