Best Metric Countersink Drill Bits in 2026

(A°) angle 49°

(B) Cutting height 1/2

(D) Diameter 25/64

【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

⭐【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.

VERSATILITY – Comes in 5 most popular sizes bits 1/4, 3/8, 1/2, 5/8, 3/4 inch counter sink drill bits.

PRECISION - 82-degree tip drills countersink holes into most machinable metals, plywood, softwood, hardwood, fiberglass plastic, mild steel, don't work on stainless.

COMPATIBILITY – 1/4” round shank fits all handheld and stationary drills.

CUT DIFFERENT MATERIALS: Use the ABN Screw Countersink Kit 5-Piece SAE Drill Bit Set, 82-Degree, 1/4” Inch Shank, 5 Flute to quickly and easily cut soft metal, wood, rubber, plastic, and other machinable materials; Drill a hole and then use one of the included bits to countersink a spot of the screw head

SIZES: The 5 bits come in SAE standard sizes 1/4-inch, 3/8-inch, 1/2-inch, 5/8-inch, 3/4-inch

COMPATIBLE: 1/4-inch round shank fits standard handheld and stationary power drills; 5 flutes reduce vibration for smoother drilling; Precision-ground 82-degree point angle for heavy-duty use and clean cuts every time; 1/4-inch tri-flat shank offers an easy grip

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.

Precision-ground 82-degree point for countersinking into most Machin able metals, wood and plastic

Hardened and tempered M2 High-Speed Steel, Premium Swift Bore (Registered Trademark)

Designed with five flutes for chatter free smooth drilling, chamfering and deburring

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.

【Premium Material】--Carbon Steel, titanium-coated for extended working life

【4 Size】--Wood plug cutter tool drill bits with 10mm shank, diameter sizes include 1/4";3/8";1/2";5/8" (6mm/10mm/13mm/16mm). you can use to create different size of plugs

【Good Effect】--The 4 pcs standard cutters to eliminate imperfections in wood.The 4pcs chamfered cutters make tapered plugs to fill countersink holes.the plug cutter set makes perfect plugs for counter-bored holes

【Multiple Sizes Countersink Drill Bit】 – The countersink drill bit set is machined from high speed steel and come in 5 most popular sizes : 1/4, 3/8, 1/2, 5/8, 3/4 inch, which will meet your daily needs.

【HSS Countersink Drill Bit】– The countersink drill bit is made of High-Speed Steel with Titanium Coating, and 82-degree tips for drilling into wood, soft metals, rubber, plastic, mild steel, don't work on stainless.

【Universal 1/4”Hex Shank】– The countersink drill bit is designed with 1/4" round shank, which fits all handheld and stationary drills. And Five-flute design reduces vibration and removes chip better, provides smoother drilling experience and extended bit life.

★ KIT INCLUDES - 2 x 1/16", 2 x 5/64”, 2 x 3/32”, 1 x 7/64”, 1 x 1/8", 1 x 9/64”, 1 x 5/32”, 1 x 11/64”, 1 x 3/16”, 1 x 1/4", 1 x 5/16”, 1 x 3/8"

★ DRILL BITS - 135°split point drill bit with 2 cutting edges and 1 flute for improved drilling speed while providing buffer to lengthen the longevity of the drill bit

★ CHIP CLEARING - A parabolic flute form helps clear chips and debris away from the bit, decreasing friction and heat for a faster, cooler drilling process

M35 Cobalt HSS: Super tough, resistant to wear, high thermal threshold. Designed for tackling tough materials like stainless steel and other high-performance alloys. Please ensure sufficient lubrication and cooling in extensive uses.

Cobalt coating helps with wear and thermal. Please be reminded that the countersinking performance will not be impacted even if coatings are worn down. The wear and tear of coating is normal and the performance relies on hardness of the countersink bit itself.

PRO compatibility for professional machinist and DIY enthusiasts: Round shank can be fitted with hand drills and bench drills. We recommend using bench drills for optimal results when working with hard alloys.

[Finish Your Projects]: Smooth out edges and other imperfections on your projects or crafts with the ABN 0.1 to 0.8-Inch Deburring Chamfer Tool; Create smooth, beveled edges on your art, home, or vehicle projects with stainless steel deburring tool

[Perfect Cut Every Time]: Deburr chamfer bit repairs damaged bolts and fasteners to get the most uses; Deburring repair tool cuts rough edges off fresh-cut pipes and bolts to create a beveled edge

[Designed for Different Materials]: Metal and PVC deburring tool can be used on stainless steel, hardened steel, mild steel, copper, brass, aluminum, fiberglass, wood, and plastic; Use copper deburring tool on round bars, nuts, bolts, or rebar 0.1 to 0.8-inch (3 to 19mm) in diameter

Solid carbide tools offer long tool life and faster cutting speeds than other substrates, but are more brittle and must be used with rigid toolholding systems

Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications

Round shanks allow use with a wide variety of toolholding systems

Surface treatment: titanizing

Material: HSS4241,Handle type: round handle

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

[High hardness]: M35 HSS-Co 5% cobalt high speed steel material, much Higher hardness than norml HSS4241

[Longer life]: Industrial grade TiAIN coating, surface hardness up to HRC89, wear resistance, more durable, the service life of 3 times longer

[Chamfer smooth]: 90 degree Oblique hole chamfer，very smooth finish, no burr, fast cutting, sharp edge

【Dimensions】-Diameter 20mm (4/5 Inch),Chamfer Angle:Top Angle 56 degree,Total length 40mm,Workable length 20mm,Hex Shank, for Electric Drill,if fix it on Hammer Drill,please turn off Hammer Mode;

【Apply to】-Not for drilling holes,but designed to Wet or Dry Enlarge, Shape, Polish,Clean,Trim,Finish,Round or Bevel Existing Rough Holes of Marble Ceramic Porcelain Tiles Granite Stone.

【Vacuum Brazed Diamond Technology】-Stronger and more Uniform layer of diamonds for Enhanced performance and longer tool life.

Material: HSS (4241), titanium coated

Shaft type:Round shaft

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

[Size Diamond Cone Tile Bit] --1pc 1-3/8 Inch (35mm)calidad tools tile cone, 35mm workable Depth, 5/8-11 Thread, Grit #80, total Length 45mm,Top Angle 53 degree

[Wide Applications] --diamond cone tile bit is designed to trim,enlarge,shape,round bevel existing holes in tile,Porcelain, Granite and Marble.cone drill bit is very useful to improve the edge finishing of exposed holes,reduce the risk of cracking with standard and large format tiles subjected to tension (ex tightened plumbing, led lights etc),Bevel Ease chamfers and stress relieves rough holes in glass,ceramic and porcelain tiles.

[Save your money] --Using our tile cutting tools to expand existing holes to different sizes or shapes(0-50mm), no need to buy several core drill bits,which will save your money greatly!

【Top Quality】Our countersunk drill is made of #45 Carbon Steel shank, alloy bit and high-quality high-speed steel to ensure its high hardness and durability, providing excellent cutting ability.

【Perfect Size Combo Set】Contains 5 sizes: 2.8 x 10mm (7/64"×3/8"), 3.0 x 10mm (15/128"×3/8"), 3.2 x 10mm (1/8"× 3/8"), 3.5 x 10mm (9/64" × 3/8"), 4.0 x 10mm (5/32" × 3/8"), and additionally equipped with 5 pilot drill bit, very suitable for wood hole drills of various sizes hole.

【Removable and Adjustable】The countersink drill set includes 5 sizes of countersink drill bits, and is equipped with 5 spare pilot drill bits and 2 hex wrenches, use the hex key easily to adjust the depth of the countersunk drill bit set and the drilling of various length screws. Meet all your DIY needs.

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.

Shank: Hex Shank,for Electric Drill,if fix it on Hammer Drill,please turn off Hammer Mode; Diameter:50mm(2 Inch),Chamfer Angle:Top Angle 60 degree,Total length:73.5mm,Workable length:43.5mm

Application:This is a versatile diamond milling finger bit, designed to Wet or Dry Enlarge, Shape, Polish,Clean,Trim,Finish,Round or Bevel Existing Rough Holes of Marble Ceramic Porcelain Tiles Granite Stone

Features:You can easily produce 0-50mm hole size with just One Standard Diamond Core Bit Plus one Diamond Chamfer Cone Tile Bit, cost-effective

There are 5PCs chamfer of 82°, which is used in carpentry, locksmith, automobile, metal processing.

Such woodworking tool can cut quickly and easily in wood, soft metals, rubber, plastics and other machinable materials.

Packed by aluminum box, chamfer bit is easy to use in the practical life, which makes itself getting great popularity.

Material: High Speed Steel (HSS), Main Drilling Body: 9x70mm / 0.35"x2.8" (D*L), Total Length: 180mm / 7.1 inch, Bore Drill Stop: 19*9*8mm (OD*ID*T).

This countersink drill bit can accurately drill a smooth hole and fast discharge chips, centering for sharp and precise countersinking.

Universal round straight shank fits for most drills. High speed steel(HSS) body is strong enough with high resistance to rust.

[3in1 Set]: Diameter: 12mm / 0.47 inch, 16mm / 0.63 inch, 19mm / 0.75 inch

[Universal Shank]: Round shank fits most handheld and stationary drills.

[5 Flute Design]: Five flutes design reduces vibration for smoother drilling and extended life.

High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance

Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications

Round shanks allow use with a wide variety of toolholding systems

Size: #2, Material: High Speed Steel, Finish: Uncoated (Bright), Overall Length: 4, Shank Type: Round, Style: Combined Drill and Countersink