Updated: 15 Apr 2026

10 Best countersunk drill bits of 2026

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Updated: 15 Apr 2026

#1

Best Choice

Irwin Tools Black Oxide Countersink Drill Bit, 5-Piece Set (1877791)

9.8

Irwin

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Main highlights

Precision-ground 82-degree tip drills countersink holes into most machinable metals, as well as wood and plastic.

Made from industrial grade High-Speed Steel for increased durability. Black oxide finish adds corrosion resistance.

Five-flute design reduces for smoother drilling and extended bit life.
#2

Best Value

5PCS Countersink Drill Bit Set, Low Friction Depth Stop, 1/8 9/64" 5/32" Drill + 3/8” 82° Counter-Bore, 11/64" 3/16" Drill + 1/2" 82° Counter-Bore, 1/4" Hex Shank, for Woodworking, with Storage Box

9.7

burtok

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DURABLE HSS BUILD: Built from heat-treated M2 high-speed steel with a spiral flute and alloy blade tip. Offers long-lasting sharpness and fast chip removal for smooth, professional results on hardwood and MDF.

ADJUSTABLE DEPTH STOP: Each bit includes a low-friction plastic depth stop ring and hex wrench to control drilling depth precisely while protecting wood surfaces from damage. Perfect for furniture projects.

5PCS COUNTERSINK DRILL BIT SET: 5PCS countersink drill bit set includes 1/8", 9/64", 5/32" drill bits matched with 3/8” 82° counter-bores, and 11/64", 3/16" drill bits paired with 1/2" 82° counter-bores. Ideal for woodworking, cabinetry, and multi-diameter drilling applications.
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#3

KOZTOL 4PCS Countersink Drill Bit Set, Counter Sink Drill Bit with Adjustable Depth Stop and L Shape Wrench, Wood Countersink Bit Set for Wood, Plastic, Woodworking

9.6

KOZTOL

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Main highlights

Set Includes: Our premium 4-piece Countersink Drill Bit Set features M2 HSS tapered pilot drill bits in sizes 2.8MM×8MM, 3.2MM×8MM, 3.2MM×10MM, 4.0MM×10MM, The 1/4" hex shank ensures a secure grip and universal compatibility.

Premium Materials: The sharp tungsten steel alloy can create smooth countersink and counterbore holes. The M2 HSS countersink bit, equipped with spiral chip flutes, ensures swift and efficient cutting

Adjustable Depth: Both drilling and countersinking depths can be easily adjusted using hex screws and depth control stops, providing enhanced flexibility for various tasks and applications
#4

BOSCH SP515 5 Piece Hex Shank Countersink Drill Bit Set with #6, #8, #10, and #12

9.5

Bosch

-10%

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Main highlights

VERSATILITY: Bosch hex shank countersink bits feature adjustable depths and provide precise, clean pilot holes in wood, plastic and composite materials

UNIVERSAL FIT: The Bosch SP515 countersink set fits all Bosch and competitive brands drill/drivers

3 in 1: Drill, Countersink and Counterbore in one step

-10%
#5

YUENTOEN 5 Pack Countersink Drill Bit Set for Metal, 1/4 Inch Hex Shank Countersunk Bits, 82 Degree 5 Flute,1/4'' 3/8'' 1/2'' 5/8'' 3/4'' with Bit Holder for Metal Wood and Plastic

9.4

YUENTOEN

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Main highlights

Premium M2 HSS Material: Crafted from industrial-grade M2 high-speed steel, and well-oiled, these countersink drill bits are excellent in tough projects, and ensuring long-lasting durability

Precise 82° Countersink Drill Bit: Featuring precision-ground 82° tips, these countersink drill bits are ideal to debur, trim, enlarge and countersink clean and smooth holes in a variety of materials including metals, wood, plastic, and more

Five Blades Design with 1/4" Hex Shank: Each countersink drill bit is engineered with five blades, which effectively reduces vibration and extends the service life of the bits
#6

Adjustable Depth 1/8" x3/8" Countersink Drill Bit, Low Friction Stop Prevent Scratches, 1/4" Hex Shank for Quick Change, Replaceable HSS Pilot Drill Bit for Wood, Plastic, Woodworking

9.3

burtok

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Main highlights

DURABLE & SHARPNESS TUNGSTEN CARBIDE： The BURTOK Countersink Drill Bit features durable tungsten carbide construction for sharpness and longevity. Its well-designed chip removal structure minimizes cleanup, significantly improving work efficiency for precise woodworking tasks.

ADJUSTABLE DEPTH CONTROL: Elevate your woodworking game with the BURTOK Depth Adjustable Countersink Drill Bit. Ideal for wood, plastic, and counterbore, adjust depths effortlessly with a wrench for flawless results.

1/4'' HEX SHANK FOR QUICK CHANGE: Designed with a 1/4-inch hex shank, allowing for rapid and effortless bit changes. Ensures secure attachment with no wobbling, ideal for seamless transitions between tasks.
#7

KEWAYO 5pcs Countersink Drill Bit Set, 1/4" 3/8" 1/2" 5/8" 3/4" Hex Bit 82° Pointed Tip Counter Sink Drill Bit for Processable Plywood Wood Fiberglass Plastic Mild Steel

9.1

KEWAYO

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Main highlights

Product Features: Our countersunk drill bit is designed with an 82° tip for easy drilling, suitable for most plywood, wood, aluminum, mild steel, fiberglass plastic, and copper, but not suitable for hard metals. You can use them for deep machining to achieve precise countersinks.

Premium material: countersink drill bit is made of M2 high-speed steel, , each drill bit is coated with a protective layer, which is strong and reliable, not easy to deform or damage, has good durability.

Package Includes: You will receive 1 countersunk drill bit set, including 5 pieces of countersunk drill bits in sizes of 1/4", 3/8", 1/2", 5/8", and 3/4", The rich sizes and quantities are enough to meet your various use and replacement needs.
#8

6Pcs Alloy Countersink Drill Bit Set with Depth Stop, Spiral Edge Countersink Wood Drill Bit, Versatile Wear Resistant Counterbore Hole Saw Drill Bit for Wood Processing

8.8

LYIYEYAN

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Main highlights

Spiral Edge: The grooved wood drill is designed with a spiral edge to quickly clean debris from the outside of the hole, effectively preventing the accumulation of dust leftover, thereby preventing clogging and ensuring a smooth drilling process

Set Content: This countersunk drill set includes a limit counterbore drill, 4 different sizes of replacement drill bits: 2.8 x 8 mm, 3.2 x 8 mm, 3.5 x 10 mm, 4 x 10 mm and a hex wrench to meet your needs in different sizes

Product Material: Our countersunk wood drill is made of alloy material, which has good cutting performance and wear resistance, is not easy to break and damage, and can withstand daily use
#9

TOOLMAYS 6pcs Countersink Drill Bit Set Hss 90 Degree Chamfering Countersink Bits Titanium Coatings Diameter 6.3-20.5 mm for Metal, Wood and Plastic

8.7

TOOLMAYS

-15%

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Main highlights

Stronger tensile strength: Our countersunk hole can cut cleanly on materials with tensile strength up to 900N/mm ², without vibration

High quality and high hardness material: The Toolmays countersunk drill bit kit is made of industrial high-speed steel that complies with ISO 4957-HS, DIN 335-C, DIN74, and DIN75, with extremely high hardness and excellent cutting performance. TiN coated countersunk holes have long-term durability

Complete 6-piece drill bit set: This set comes in six different sizes to choose from -6.3mm, 8.3mm, 10.4mm, 12.4mm, 16.5mm, and 20.5mm

-15%
#10

5-pc Countersink Drill Bit Set, 3in1 Woodworking Counterbore Hole Drill Bits for #6 8 10 12 16 Screws, Depth Adjustable M2 Pilot Drill Bits, 82-Degree Chamfer, 1/4” Hex Shank, 2 Allen Wrench

8.6

DKIBBITH

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Main highlights

Multiple Sizes to Meet Your Needs: Our 5 Packs Woodworking Countersink Drill Bits set includes three commonly used sizes of countersink drill bits: #6 (3/32"), #8 (7/64"), #10 (1/8"), #12 (9/64"), and #16 (3/16"). These sizes cater to the needs of cabinet and furniture makers, as well as other woodworking enthusiasts.

Excellent Performance: Our countersink drill bit set is made of high-quality M2 HSS, designed for superior cutting power and durability, ensuring excellent performance on various materials, including wood, plastic, soft metals, fiberboard, particle board, plywood.

Adjustable and Versatile: The 3in1 Woodworking Counterbore Hole Saw Drill Bits set features a standard 1/4 inch hex shank for quick change. An adjustable counter sleeve depth can be easily adjusted with the provided Allen wrench; enables flush screw heads or deeper holes to be covered with matching plugs for professional finish.

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10 Best countersunk drill bits of 2026

Irwin Tools Black Oxide Countersink Drill Bit, 5-Piece Set (1877791)

9.8

Main highlights

5PCS Countersink Drill Bit Set, Low Friction Depth Stop, 1/8 9/64" 5/32" Drill + 3/8” 82° Counter-Bore, 11/64" 3/16" Drill + 1/2" 82° Counter-Bore, 1/4" Hex Shank, for Woodworking, with Storage Box

9.7

Main highlights

KOZTOL 4PCS Countersink Drill Bit Set, Counter Sink Drill Bit with Adjustable Depth Stop and L Shape Wrench, Wood Countersink Bit Set for Wood, Plastic, Woodworking

9.6

Main highlights

BOSCH SP515 5 Piece Hex Shank Countersink Drill Bit Set with #6, #8, #10, and #12

9.5

Main highlights

YUENTOEN 5 Pack Countersink Drill Bit Set for Metal, 1/4 Inch Hex Shank Countersunk Bits, 82 Degree 5 Flute,1/4'' 3/8'' 1/2'' 5/8'' 3/4'' with Bit Holder for Metal Wood and Plastic

9.4

Main highlights

Adjustable Depth 1/8" x3/8" Countersink Drill Bit, Low Friction Stop Prevent Scratches, 1/4" Hex Shank for Quick Change, Replaceable HSS Pilot Drill Bit for Wood, Plastic, Woodworking

9.3

Main highlights

KEWAYO 5pcs Countersink Drill Bit Set, 1/4" 3/8" 1/2" 5/8" 3/4" Hex Bit 82° Pointed Tip Counter Sink Drill Bit for Processable Plywood Wood Fiberglass Plastic Mild Steel

9.1

Main highlights

6Pcs Alloy Countersink Drill Bit Set with Depth Stop, Spiral Edge Countersink Wood Drill Bit, Versatile Wear Resistant Counterbore Hole Saw Drill Bit for Wood Processing

8.8

Main highlights

TOOLMAYS 6pcs Countersink Drill Bit Set Hss 90 Degree Chamfering Countersink Bits Titanium Coatings Diameter 6.3-20.5 mm for Metal, Wood and Plastic

8.7

Main highlights

5-pc Countersink Drill Bit Set, 3in1 Woodworking Counterbore Hole Drill Bits for #6 8 10 12 16 Screws, Depth Adjustable M2 Pilot Drill Bits, 82-Degree Chamfer, 1/4” Hex Shank, 2 Allen Wrench

8.6

Main highlights

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