Best Cutting Countersink Drill Bits in 2026

HSS Titanium Coating - Classic HSS construction with titanium coating for capability and durability. The cutting edge is hardened and honed for sharpness, chatter-free design with staggered cutting teeth ensure the precise countersinking and hole smooth clean.

Flutes Form - 2 flutes form helps clear chips and debris away from the bit, decreasing friction and heat for a faster, cooler drilling process.

Quick Change - 1/4 inch hex shank fits into all power tools more easily and securely, specially for locking into quick change chuck. We also offer a quick-change adapter to better quick change.

Manufacturer: Greenlee

Country of manufacture: China

Power Cutting & Sawing

(A°) angle 49°

(B) Cutting height 3/64-3/8

(D) diameter 1/2

Self-starting point starts on contact

Balanced double flute

Eliminates chatter and vibration

【 Exquisite workmanship】Durable taps are made of high speed steel, which can ensure sharp, fast execution and retain strength and efficiency. The surface is treated with a titanium alloy, which greatly improves the cutting performance of the drill, is more wear-resistant and prolongs the service life.

【Ergonomic design】The product portfolio includes SAE and metric sizes, so it has high versatility. Each tap drill is engraved with a label, which is convenient for you to choose the size that suits you. The convenient ¼-inch (6.35mm) hex shank has a tapered end to prevent excessive knocks. Back taper exceeds the tap to prevent over-drilling and damage to the thread.

【High efficiency 】 They are taps with drilling function, three-in-one operation, which can drill, tap, deburr and counter holes on copper, brass, aluminum, metal sheet and plastic at the same time, so as to quickly , Complete work completely, greatly save processing steps and time costs, and improve work efficiency.

【IDEAL COMBO SET】 7 countersink drill bits size of Ø7/64”(3mm), 5/32”(4mm), 13/64”(5mm), 1/4”(6mm), 9/32”(7mm), 5/16”(8mm) combine with Ø19/32”(15mm) countersink pedestal, 13/32”(10mm) combine with Ø45/64” countersink pedestal. 3 countersink bits with most commonly-used sizes of Ø12mm(1/2"), 16mm(5/8"), 19mm(3/4") A 1/10”(2.5mm) Free Hex Key Wrench Plus. Come with a portable plastic case for easy convenient select, storage and organization.

【PREMIUM QUALITY】Made with industrial grade high-carbon steel, great hardness provides sharp edges, high strength takes bits with superior cutting capactiy and durability. Ideal for household woodworking and DIY Projects.

【EFFICIENT DESIGN】For 7 countersink drill bits, 3-point tricuspid ensures drill process accurate and fast, no offset, slip and bias during drilling; 2-spiral flute makes chip removing easy and efficient. For 3 countersink bits, 90°on the point & 1/4" hex shank for quick change make the countersink process convenient. All drill bits get 5-edged chatter-free chamfer cutter pedestal design makes countersink precise and smooth. All cutting edge are well hardened and honed for sharpness.

Countersink drill bit set for wood with tapered drill bit , 4 Flute countersink cutter #45 Carbon Steel, tapered countersink set features 3 Piece drill set All Same Size drill bits with countersink #4 (7/64") Adjustable wood countersink, 1 Hex Wrench (1/8" Allen Key). Counter-bore, and wood plugs size 3/8 inch. Hex shank compatible with 1/4" standard Quick Change chuck including impact drills. FTG 2326 drill bit set hex shank

Wood drill bit set with counter bore chamfer angle 82 degree, smooth countersinking in hard and soft wood, tapered holes for screws. Adjustable countersink drill bit with quality built depth adjustable counter bore attaches to flat on shank with 2 hex screws for controlled pilot hole depth. Best adjustable wood countersink drill bits set ideal for woodworking. Countersink tool set made with countersink bits for wood

Tapered drill bits pointed tip and wide flute for drilling fast, clean pilot hole, ensures tight fit for screws. Countersink hex drill bit set with tapered drill bit can be replaced with FTG replacement taper drill bits countersink for extended wood bit. Countersink drill bits for wood made to drill, countersink, and counter-bore in 1 step sink counter set. Counter sink bits designed as to work as wood drill bits

Material: Titanium Combination Drill taps are made of HSS 4341, High hardness, rustproof, solid and durable; Each tap drill is engraved with a size making, which is convenient for you to choose the size that suits you.

Easy Use: Fast replacement composite cone, uses drill edged principle. Drilling and tapping in one, one-step processing, greatly save processing steps and time costs, improve working efficiency.

Metric: M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5.Shank:1/4 inch (6.35mm) hex quick-change shank, fit Electric hand drill, impact drill, bench drill, electric screwdriver and other tap machines.

【IDEAL COMBO SET】 A set of countersink drill bits with 7 drill size, Ø7/64”(3mm), 5/32”(4mm), 13/64”(5mm), 1/4”(6mm), 9/32”(7mm), 5/16”(8mm) combine with Ø19/32”(15mm) countersink pedestal, 13/32”(10mm) combine with Ø45/64"(18mm)” countersink pedestal. A 1/10”(2.5mm) Free Hex Key Wrench Plus. Come with a portable plastic case for easy convenient select, storage and organization.

【PREMIUM QUALITY】Made with industrial grade high-carbon steel, great hardness provides sharp edges, high strength takes bits with superior cutting capactiy and durability. Ideal for household woodworking and DIY Projects

【EFFICIENT DESIGN】3-point tricuspid ensures drill process accurate and fast, no offset, slip and bias during drilling; 2-spiral flute makes chip removing easy and efficient; 5-edged chatter-free chamfer cutter pedestal design makes countersink precise and smooth. All cutting edge are well hardened and honed for sharpness.

Manufacturer: Greenlee

Country of manufacture: China

Power Cutting & Sawing

CAPABILITY & DURABILITY: Classic Carbon Steel Material. High hardness, offer superior cutting power and durable.

THREE-POINTED DESIGN:Quickly and accurately drill a smooth hole.Better in CENTERING and NO SKID . Five-edged chamfer design will fast discharge chips from the hole on both sides automatically.

REMOVABLE & ADJUSTABLE: Easy to use the combination of Hex Key to adjust or disassemble the countersink drill bit and the five-flutes chamfering.

Material:HSS（High Speed Steel）4241, Titanium Coated

Application:Ideal for cutting through metal,wood,plastic and thin iron plate (hardness <25 degrees)

Chamfer range:2-5mm, 5-10mm, 10-15mm, 15-20mm, Shank diameter: 6mm, 8mm, 10mm, 12mm, Head diameter: 10mm, 14mm, 21mm, 28mm

Countersink drill bit set for wood with tapered drill bit 3rd Party Tested HSS M2, 4 Flute countersink cutter #45 Carbon Steel tapered countersink set 4 sizes drill bits with countersink #6 (9/64"), #8 (11/64"), #10 (3/16"), #12 (7/32") 2 plug cutters for wood making wood plugs or wood dowels sizes 3/8" and 1/2" Adjustable wood countersink, 1 Hex Wrench (1/8" Allen Key) counter sinker drill bit for wood. 1/4" Hex shank compatible with standard Quick Change chuck including impact drills

Wood drill bit set with counter bore chamfer angle 82 degree, smooth countersinking in hard and soft wood, tapered holes for screws. Adjustable countersink drill bit with quality built depth adjustable counter bore attaches to flat on shank with 2 hex screws for controlled pilot hole depth. Best adjustable wood countersink drill bits set ideal for woodworking. Countersink tool set made with countersink bits for wood, FTG 6TO12P tapered countersink drill bits

Tapered drill bits pointed tip and wide flute for drilling fast, clean pilot hole, ensures tight fit for screws. Countersink hex drill bit set with tapered drill bit can be replaced with FTG replacement taper drill bits countersink for extended wood bit. Countersink drill bits for wood made to drill, countersink, and counter-bore in 1 step sink counter set. Counter sink bits designed as to work as wood drill bits

[A variety of drill bits]: 5 different drills, which can meet all your daily needs

[Ultra-high strength]: easily perforate wood, metal, plastic and other materials

[Multiple sizes]: Each drill has multiple sizes to meet your different needs for sizes

Package included 23pcs woodworking chamfer drilling tool, 6pcs 1/4" Hex Shank HSS 5 Flute 90 Degree Countersink Drill Bits, 7pcs Three Pointed High Speed Steel Countersink Drill Bit with One L-wrench for Wood Drilling or Woodworking Chamfer, 8pcs wood plug cutters drill bit set and 1pcs Automatic center punch for marks workpiece with a dimple, creating a starting point that prevents screws and drills from wandering

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 5 flute countersink drill bit made of high speed steels and with 6 different diameter sizes 6mm(1/4"), 8mm(5/16"), 9mm(3/8"), 12mm(1/2"), 16mm(5/8"), 19mm(3/4"),used for sinking 90 Degree 6 different sizes Holes into Wood and PVC boards Countersunk Screws and Fixings.

Replacement tapered counter sinker drill bit set 3 Piece #6 (9/64") bit replacement Only (without the 4 Flute cutter countersink counter-bore), made to replace the 9/64” bits of #6 countersink drill bit set for wood. Replacement bit countersink with hex shank compatible with 1/4" standard Quick Change chuck including impact drills. All same size replacement tapered drill bit for drill countersink

FTG drill bit replacement set made with tapered countersink bits for wood. Countersink replacement bits set with tapered drill bits. Top Quality 9/64 inch tapered and double flute drill bit; HSS M2 Grade 6542 the most popular High-Speed Steel, for its high toughness, and good cutting edge retention. FTG 2329 countersink replacement drill bit set for drill bits with countersink

THIRD-PARTY TESTED by US Accredited Lab - HSS M2 Grade 6542 countersink drill bit for wood with tapered drill bits. Replacement countersink drill bits with pointed tip and wide flute for drilling fast, clean pilot hole, ensures tight fit for screws. All FTG countersinks hex drill bit sets with tapered countersink bit can be replaced with FTG replacement taper drill bits countersink for extended wood bit. Countersink replacement drill bits designed as to work as wood drill bits

【Size】Diameter: 2" (50mm), Threads: 5/8"-11, Grit: #80, Degree: 60, Total length: 55mm, Working Depth:46mm

【Function】It is a versatile milling bits designed to enlarge, shape and/or round bevel existing holes in Porcelain, Hard Ceramic, Granite and Marble. Also easily create round shape indentation to accommodate pipes or electric wire lines

【Used for】Very useful to improve the edge finishing of exposed holes.Diamond bit for a smooth, high-end finish.Bevel Ease chamfers and stress relieves rough holes in ceramic and porcelain tiles

Combination countersink and/or counter bore for standard wood plugs.

Standard hex shank - fits all power bit quick change chucks

Alloy steel & thru hardened with a 82 degree angle

Wide Range of Sizes: Including 7 Pieces of Plain Center Drill Bits Set range in size 1.0 1.5 2.0 2.5 3.0 4.0 5.0 to meet different needs

Accurate: A 60-Degree Angle center drill is very useful in drilling accurate center holes, 60-degree countersink holes or starter holes for bigger drill bits in metal-working

High Quality: Our center drill bits made of high quality M2 High speed steel, solid and high temperature wear resistant

【 Durability&High Hardness】Made of classic carbon steel material, high hardness, offer superior cutting power and durable.Widely used suitable for DIY, home and general building or engineering using, etc.

【Three Pointed Design】Quickly and accurately drill a smooth hole. Better in centering and no skid.Five-edged chamfer design will fast discharge chips from the hole on both sides automatically.It can effectively prevent the accumulation of debris retention, improve the drilling efficiency.

【Different Sizes】Our Countersink drill bit sets include 6 kinds of sizes:2.8 x 8mm（7/64''×5/16"）, 2.8 x 10mm（7/64"×3/8"）, 3 x 8mm（7/16"×5/16"), 3 x 10mm(7/16"×3/8”）, 3.2 x 8mm（1/8"×5/16”）, 3.2 x 10mm（1/8"×3/8"), very suitable for using to multi size wood hole drilling. One tool for multi uses, improve your working efficiency.

⭐【Material】Countersink drill bit is made of High-speed steel, offering a combination of hardness and toughness for wear resistance.

⭐ 【Round Shank】Countersink drill bit is with round shanks which are available for a wide variety of toolholding systems.

⭐【60 Degree Holes】Used for drilling holes with chamfered edges 60 degree holes, 32mm/1.26" drill diameter.

Excellent Performance: Countersink drill bit set for wood with tapered drill bit M2 HSS, 4 Flute countersink cutter for superior cutting power & durable

Product Feature: Standard 1/4 inch hex shank is quick change compatible and has an adjustable counter sleeve depth with Allen wrench, for flush screw heads or deeper to cover with matching plugs

Meet Your Demands: #4(7/64”), #6(9/64"), #8(11/64"), #10(3/16"), #12(7/32"), 5 pieces different sizes of countersink drill bits, satisfy you all demand. The most often used sizes for cabinet, furniture makers and other wood working

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

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.

2 pc 8-32 Combination Drill and Tap Multi Use Deburr Countersink Hex Bit

Made of high speed M2 steel. For use with: steel, copper, brass, aluminum. drill, tap and deburr in one operation.

Drill, tap and deburr in one operation. Tapered tap design prevents thread damage from over-drilling.

【Step Drills and Cone Drill】3 piece 5/9/14 step drills (4-12/20/32mm) and 1 piece cone drill (8-20mm). Laser marking of step size provide convenient and accurate drilling

【Countersink Drill Bits】6 piece countersink drill bits: 6.3, 8.3, 10.4, 12.4, 16.5, 20.5mm - 90° point, three cutting edges, ideal for deep countersinking

【High Quality】All drills are HSS Titanium coated, come with 1/4" (6.35mm) hex shank, and are precision ground, heat treatment, and hardened for consistently accurate drilling or enlarging holes into sheet & non-ferrous metals, wood and plastics

✔【6Pcs Tap Drill Bit Sets】Titanium Coated HSS Drill and Tap Bits, include M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5, set of 6 Size is clearly engraved on the shank for easy identification.

✔【Composite Cone】Fast replacement composite cone, uses drill edged principle.High hardness, rustproof, solid and durable.Taps with drilling function, used to drill a hole and cut new threads at the same time, you will have a smooth tapping experience with them.

✔ 【Widely Application】Quick change 1/4” inch hex shank. Can be used with power tools, electric drill, group general tools, air and other any standard bit holders.1/4 inch hex shank fits into power tools more easily and securely.

Must Have Tile Tool: This Diamond Chamfer Bit designed to Bevel, Enlarge Holes, Trim, Shape, Smoot Rough Cutting Surfaces in Porcelain, Hard Ceramic Tiles, Granite, Quartz and Marble Countertop and more

Multi-Functional: The Diamond Cone Countersink Drill Bit equals a bunch of different sizes core bits; with one core bit to start a hole, this bit can enlarge the hole into any size between 0 to 2inch (0~50mm)

Fit Angle Grinders and Electric Drills: The Diamond Chamfer Bit built with 5/8 -11 Thread for most Angle Grinders, and package also includes a 3/8” Hex Shank Adapter for most electric drills

✅【Automatic Center Punch】The center punch delivers an automatic,high-impact,spring-loaded strike through adjusting the cap; Carbide center punches are 10 times stronger than regular punchesprotective aluminum case makes the drills not easy to dull.

✅【Hss 50 Sizes】 ncludes five standard step drill bits with center punch,Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes,to meet your normal needs.

✅【Durable titanium coated drill】Coated by titanium, this step drill set performs well in heat, corrosion and rust resistance,Can reduce friction and run cooler.

Introducing our 6pcs wood metal Counter sink Drill Bit , designed to provide excellent results when drilling through metal and wood. Made with high-speed steel HSS4241, this drill bit is known for its durability, strength, and resistance to wear and tear.

Our Chamfer Drill Bit features a 90-degree angle and 3-flute design, which ensures precise and accurate drilling, delivering a clean and smooth finish every time. The countersink drill bit is designed is ensures that the screw head sits flush with the surface, providing a professional and polished look to your work.

This woodworking and metal working drill bit set is suitable for use on a wide range of materials, Used in hardness 25 ° below the workpiece, such as carbon steel, sheet iron, insulation board including metal and wood, making it a versatile tool for any workshop. 6 pcs different size , One set for all your needs .Whether you're a professional carpenter, mechanic, or DIY enthusiast, our Countersink Drill Bit is an essential addition to your tool collection.