EZARC Countersink Drill Bit Set, 12PCS 2-Flute Adjustable Bits for Wood | Titanium-Coated HSS Bits, Sizes #4, #6, #8, #10, #12, Magnetic Extension Bit Holder, 1/4" Hex Shank, Storage Case
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Availability:
In Stock.
Arrives
Wednesday, Aug 19
Set name: Countersink Bit Set (12PC)
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.
Description
Silence Combination With wood plug cutter Self Centering Drill Bit With screwdriver bits All-in-One Drilling Set Complete Flat Bottom Set
Material: High Speed Steel (HSS)
Finish Type: Titanium
Shank Type: Hex
Cutting Angle String: 82 degrees
Brand: EZARC
Brand Name: EZARC
Model: 80331012
UPC: 810151451831
Set Name: Countersink Bit Set (12PC)
Unit Count: 12 Count
Manufacturer: EZARC
Part Number: 80331012
Number of Pieces: 12
Material Type: High Speed Steel (HSS)
Finish Types: Titanium
Shank Type: Hex
Surface Recommendation: Wood
Cutting Angle String: 82 degrees
Tool Flute Type: Spiral
Number of Flutes: 2
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Aug 19
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
Set name: Countersink Bit Set (12PC)
Installed a bench top with these. Worked great, easy to use and adjust. No issues with stability as they are sharp and made a perfect cut every time. Good quality bit and will buy again
Reviewed in the United States on May 5, 2026 by Amazon Customer
Set name: Countersink Bit Set (12PC)
These EZARC countersink bits have been a great addition to my woodworking kit. They work well and are very easy to use. The different sizes (#4, #6, #8, #10, #12) cover just about every common screw I use, and adjusting the depth is straightforward. They drill a clean pilot hole and countersink in one shot, which saves time and gives a professional, flush finish on screws. The magnetic extension bit holder is a nice bonus for reaching into tighter spots, and the included storage box keeps everything organized and easy to find. If you want cleaner-looking screw joints in your wood projects with minimal fuss, this set does the job really well.
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Reviewed in the United States on April 11, 2026 by Jason Clinton
Set name: Countersink Bit Set (12PC)
Pretty good for the price. Sometimes the drill bit inside the counter sink gets loose and no longer stays in place… even with tightening it down. I guess that’s why it’s a multi-pack. We used it for about 1000 holes (building a deck) before needing to swap it out.
Reviewed in the United States on July 14, 2026 by The Grunaus
Set name: Countersink Bit Set (12PC)
These countersinks are sharp and cut easily into decking boards. I've only been using this set for about two weeks, but so far I am delighted with how well they work. Is this a professional set for heavy duty, daily use? No, but for DIYers and weekend woodworkers, they are just the ticket. I recommend them to my friends and family.
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Reviewed in the United States on July 24, 2026 by najrellim
Set name: Countersink Bit Set (12PC)
UPDATE: I've updated my review. The EZARC folks read my first review and saw that I experienced some broken bits. They reached out to me to discuss the issue and offered to send a replacement kit. The replacement set arrived. They stand behind their product and will try to make things right. This is the kind of company I will do business with. I have purchased this countersink set twice. Although they have a good reputation, they are not as durable as I originally thought they would be. I have broken several of them in what I would call ordinary use. Also, the shoulder gets dull very quickly - even in soft wood like poplar. I still use them, but I would like to find a more durable countersink bit set.
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Reviewed in the United States on May 5, 2026 by F. Kirk
Set name: Countersink Bit Set (12PC)
Works great and easy to use
Reviewed in the United States on June 18, 2026 by ND7 El Patron
Set name: Countersink Bit Set (12PC)
Excellent set. Countersunk close to a thousand screws with no problems. Check each bit as the first set had one that was completely dull. Replaced with a working set.
Reviewed in the United States on July 18, 2026 by Timothy P Hellkamp
Set name: Countersink Bit Set (12PC)
Works fine- delivered on time in prefect condition. The minor issue hence the 4 star, is it will not hold in the “holder” occasionally it will drop out when you take the drill out not sure if this is just the size not being precise with the holder (could be either the size of “holder” or this drill bit) but otherwise great product
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Reviewed in the United States on April 7, 2026 by Amazon Customer