Best Metric Countersink Drill Bits in 2026

Daisy
Last Updated: Feb 7, 2026

At a Glance: Our Top Picks for Metric Countersink Drill Bits

KOWOOD Pro Countersink Drill Bit Set #4, 6, 8, 10, 12, 5-Piece for Wood High Speed Steel, Woodworking Carpentry Reamer with 1 Free Hex Key Wrench
#TOP1
Kowood Pro Countersink Drill Bit Set #4, 6,
9.4
PM SCORE
JNB PRO Countersink Drill BIT Set for Metal - 5 PC HIGH Speed Steel with 5% Cobalt HSS-Co M35 Grade, Sizes 1/4", 3/8", 1/2", 5/8" & 3/4" - 5 Flutes 82 Degree - 1/4" Shank - Metal Countersink BIT Set
#TOP2
Jnb Pro Countersink Drill Bit Set For Metal
9.4
PM SCORE
Countersink Bit Set for Metal, M2 Cobalt Countersunk Bits 5 Pieces, Gold Oxide Countersink Drill Bit,1/4" Hex Shank Countersunk Bit Set for Drilling in Copper, Aluminum, Wood, Plastic
#TOP3
Countersink Bit Set For Metal, M2 Cobalt Countersunk
9.3
PM SCORE

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Summary of the Best Metric Countersink Drill Bits of 2026

Kowood Pro Countersink Drill Bit Set #4, 6, 8, 10, 12, 5-Piece For Wood High Speed Steel, Woodworking Carpentry Reamer With 1 Free Hex Key Wrench

KOWOOD
KD-002
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
yuchuan-us 9.86

Features

Mutiple sizes-Includes 5 Gold Screw Countersinks: 5/64”x3/8”, 3/32”x3/8”, 7/64”x3/8”, 1/8x3/8” & 9/64”x1/2”

Quick change-The 1/4" hex shank can be used with power drills and quick-change chucks.

Durable – High-grade carbide tipped, fully sharpened edge, quick drilling, easy to use, in longer life

Suitable for woodworking-Compatible with drilling machines with chucks, used to drill holes on wooden boards or wooden floors

Precise punching-punching can be done quickly and accurately. The external thread design can help discharge waste when drilling, so as to ensure successful drilling

Jnb Pro Countersink Drill Bit Set For Metal - 5 Pc High Speed Steel With 5% Cobalt Hss-Co M35 Grade, Sizes 1/4", 3/8", 1/2", 5/8" & 3/4" - 5 Flutes 82 Degree - 1/4" Shank - Metal Countersink Bit Set

JNB PRO
JP14T75M
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
JNB Pro 6.43

Features

METAL BIT COMPOSITION - Esclusively designed to work with industrial grade metals they are manufactured with High Speed Steel with 5% Cobalt known as HSS-Co M35 grade

EFFICIENCY - Working with stationary drill ensures better finish on chamfers but they can be used with hand drills as well for countersinking in any hard or soft metal and any type of wood.

DURABILITY - This metal counter sink bit set for steel is made for last longer than any other regular High Speed Steel bits, they are extremely sharp and finished with black & Gold corrosion proof.

DESIGN - Designed with 82 degree 5 flutes to reduce vibration and smoother drillling , the 1/4" round shank fits all stationary and hand drills

IMPORTANTE TIPS FOR USE - The Metal Countersink Bits are just a chamfer tool to countersink the holes, it is not self drill tool, the pre drill with a metal drill bit with desired size for the screws has to be done before using it for countersink.

Countersink Bit Set For Metal, M2 Cobalt Countersunk Bits 5 Pieces, Gold Oxide Countersink Drill Bit,1/4" Hex Shank Countersunk Bit Set For Drilling In Copper, Aluminum, Wood, Plastic

BOYOUYS
ZT006
4.50 X 1.00 X 5.50 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
BOYOUYS 7.32

Features

✅【Five-blade design】Each countersunk drill adopts five-blade blade design, which can reduce vibration and prolong life, achieve smoother drilling, with 1/4" metal hex.

✅【Compact Grinding】Precision grinding 82° tip for drilling holes on most medium hardness stainless steel, copper, aluminum, wood, plastic.

✅【M2 HSS Cobalt Layered Drill Bits】M2 Cobalt Coated, each metal countersunk drill bit is made of high quality M2 HSS material, this countersunk drill bit set is excellent in heat, corrosion and rust resistance to reduce friction and run cooler.

✅【Universal Compatibility】Surface black oxide treatment increases corrosion resistance, and the five-blade design helps create a strong connection between the screw and the material.

✅【Clear Sizes】Meticulously crafted drills with very high visibility numbers available in very common 1/4", 3/8", 1/2", 5/8" and 3/4" drill sizes.

✅【100 extra-long warranty period】:if you have any questions about the product, please contact us and we will answer you within 12 hours. If the hexagonal handle breaks, refund or replace for 100% .

Muxsam 1/4 Inch Hex Shank Countersink Drill Bit Power Tools Accessories For Plastic Metal Woodworking Tool By Power Drill 5Pcs/Set #5#6#8#10#12 (Gold)

MUXSAM
4067RK
3.10 X 2.40 X 0.40 Inches
0.15 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Digital2018 9.90

Features

♡【SATISFY YOU ALL DEMAND】Countersink drill bit set is include 5 pcs of drill bits in 5 different sizes to satisfy you all demand. The most often used sizes for carpenters, cabinet, furniture makers and other wood working trades.

♡【USER-FRIENDLY DESIGN】Standard 1/4 inch hex shank is quick change compatible and has an adjustable counter sleeve depth with Allen wrench.

♡【MULTIPURPOSE】Countersink drill bit erfect for wooden planks, plastic, soft metals, fiber board, particle board, plywood, alumiumn board etc.

♡【HIGH QUALITY】Countersink drill bit is made by high speed steel, this countersink drill bit is easy to use. Meanwhile compared with ordinary the drill accuracy more high.

♡【GOOD WORKING】The countersink drill bit have self-starting point and five-fluted design eliminates chatter and vibration for smooth operation to make clean, accurate and burr-free cuts.

Loboo Idea 26 Pieces/Set Drilling Tools, Including 6 Countersink Drill Bits, 7 Three Pointed Drill Bit,1 L-Wrench, 8 Wood Plug Cutter, 4 Step Drill Bit Set (26 Pieces/Set, Gold And Silver)

LOBOO IDEA
26 PIECES/SET DRILLING TOOLS
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Loboo Idea 7.66

Features

6pcs 1/4" Hex 5 Flute 90 Degree Countersink Drill Bits: All have a 90° angle on the point for sharp and precise countersinking. The cutting edge is hardened and honed for sharpness. A Chatter-Free,five-flute designed with staggered cutting teeth aranged to insure free chip flow and rapid chatter free cutting.

7pcs Three Pointed Countersink Drill Bit with L-wrench are made of high speed steel with good abrasion resistance and durable,includes 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm for drilling pilot holes,the drill bit large chip flute and five edge chamfers allows faster and easier discharge of sawdust.

3/8" shank 8pcs wood plug cutter drill bit set made of durable carbon steel material,used for tapered 1/4", 3/8", 1/2" ,5/8" wood plugs to cover recessed screw holes or hide blemishes,able to cut plugs to 22mm/23mm/25mm/26mm in length.

1/4" Hex Shank 3Pcs HSS Step Drill Bit Set, Perfect Step Drill Bits suitable for drill holes in various material: within 3mm/0.12 inch (Iron Plate, Copper Plate, Aluminum Plate); within 5mm/0.2 inch (Wood, PVC sheet, Insulation Boards). Not suitable for hard and brittle materials such as stainless steel, glass, tile floors, walls etc.

REFUND or RESEND GUARANTEE--No Questions Asked! If you are not 100% satisfied with your wood working Chamfer Drilling Tool, a refund or a new package will be issued. Click “BUY IT NOW” and ENJOY QUALITY of OUR TOOLS.

#TOP6

Atoplee Chamfer Countersink Deburring Drill Bit Set Crosshole Cutting Metal Tool (All 4 Sizes, Gold)

ATOPLEE
15050034
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ToolMall 9.71

Features

Surface treatment: titanizing

Material: HSS4241,Handle type: round handle

Handle diameter:6mm,8mm,10mm,12mm; Head diameter:9.7mm,14mm,21mm,28mm

Range of Chamfer hole:2-5mm,5-10mm, 10-15 mm, 15-20mm

Package Included:4pcs Inclined Hole Chamfering Device

#TOP7

Preamer 4 Pcs 90 Degree Titanium Countersink Drill Bit Wood Chamfer Deburring Tool Set For Wood Soft Metal Woodwork Drill Bit Tool

PREAMER
PR-221451
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Chiloskit tool 9.69

Features

Used for workpiece circular aperture chamfering or cone hole, the edges on the surface of the chamfering processing

Suitable for using in hardness under 25 artifacts, such as aluminum, insulation board, PVC board(Not for Stainless steel)It is not suitable for materials that are too thick or too hard.

When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.

Titanium nitride coatings add a hard layer of gold-colored ceramic to the surface that extends tool life and permits faster cutting speeds than uncoated tools

Material: high speed steel.Quantity:1 Set (4Pcs)

Toolstar Cobalt Countersink Drill Bit, Countersink Drill With Hole 4Pcs Deburring Chamfer Drill Bit Set Wood Metal Plastic Drill Bit 2-5Mm 5-10Mm 10-15Mm 15-20Mm (Gold)

TOOLSTAR
HD0014
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
HATOOLHA 5.46

Features

Material: HSS (4241), titanium coated

Shaft type:Round shaft

Sizes: 2-5mm,5-10mm, 10-15 mm, 15-20mm

Ideal for cutting through metal, wood and plastic (hardness <25 degrees)

Used for workpiece circular aperture chamfering or cone hole

5Pcs Countersink Drill Bit Set, High Speed Steel Counter Sinker Drill Bit, 5 Flute 6Mm Round Shank Mill Cutter Bit, 82 Degree Countersink Bits For Wood And Metal In Sizes 1/4'' 3/8'' 1/2'' 5/8'' 3/4''

LINKSTYLE
T182510-L001223251FBA
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Linkstyle 9.78

Features

MULTIPLE SIZES: The countersink set is made of industrial grade high speed steel for durability. Includes 5 most commonly used diameter sizes: 1/4, 3/8, 1/2, 5/8, 3/4 inches to meet your daily needs. Countersink drill bits are a great fathers day gifts from daughter son.

HIGH PRECISION: Each countersink drill bit set has a corrosion resistant gold oxide coating. Precision ground 82 Degree flat heads screws remove chips smoother allowing the screw heads to be flush and even with the surface of the material being utilized.

UNIVERSAL 1/4” ROUND SHANK: The counter sinker drill bit is designed with 6mm round shank, which fits all handheld and stationary drills. This mill cutter bit is suitable for wood, soft metal, fiberboard, particle board, plywood, plastic, aluminum board, PCB board and more.

LONG LIFE: Five-flute design reduces vibration and removes chips better and eliminates the need for fussing with depth, providing a smoother drilling experience and extended bit life.

BUY WITH CONFIDENCE: The high-precision countersunk bit set has corrosion resistant and long service life, which can improve your work efficiency. If you have any problem with the product, please feel free to contact us, we will reply and solve the problem within 24 hours.

Top 10 countersink drill bits Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Atoplee 1
Boyouys 1
Jnb Pro 1
Kowood 1
Linkstyle 1
Loboo Idea 1
Muxsam 1
Preamer 1
Toolstar 1

Top 10 countersink drill bits Brands Pie Chart


We've carried out a comprehensive analysis of 1,503 reviews on countersink drill bits, using our selection criteria to identify the best options in the home improvement. Our findings reveal that most customers typically select countersink drill bits priced around $19.39, with top brands including dkibbith, bosch, vouyar, irwin, wenhuali, ftg usa, deckrkat, comoware and dewalt and gmtools

Our team of expert editors reviewed these high-quality items and handpicked the top 9 countersink drill bits for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the home improvement category. These include dkibbith, tool country2, xpecial-kimall, amazon.com, lano direct, fair trade group usa, deckrkat, tg tools and gmtools us ii and city-vision .

We are dedicated to assisting our users in finding the right bits Products based on their needs, saving them considerable time when choosing which countersink drill bits to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.