Top 10 Cobalt Drill Bit Set

Discover our curated selection of high-quality products.

Last update: 12-07-2026

Best Drills & Bits overall →
1
DEWALT Titanium Nitride Coated, 21-Piece (DW1361),Yellow Titanium Pilot Point Drill Bit Set
DEWALT

DEWALT Titanium Nitride Coated, 21-Piece (DW1361),Yellow Titanium Pilot Point Drill Bit Set

  • DEWALT drill bit set has connectable accessory storage system to optimize storage space
  • Patented bit-bar design of the drill bits set allows easy removal of bits and customizable placement
  • Clear lid of the Titanium Nitride Coated drill bit set allows you to easily see contents at glance
  • Clip latch for secure closing
  • Small Bulk Storage size fits inside the Small and Medium ToughCase plus (sold separately) - Ideal for organizing loose bits
9.8/10
Editor's Pick
Available at Amazon
2
Rennie Tools - 10pc 4.2mm HSS Gold Cobalt Jobber Drill Bit Set for Stainless Steel, Hard Metals, Aluminium, Cast Iron, Copper

Rennie Tools - 10pc 4.2mm HSS Gold Cobalt Jobber Drill Bit Set for Stainless Steel, Hard Metals, Aluminium, Cast Iron, Copper

  • For drilling particularly tough or hard metal drilling applications such as stainless steel, hardened metal, cast iron, Cr-Ni and special acid resistant steels. Also work very well on standard metals / steels, RSG, aluminium, high temperature alloy, titanium alloy, non ferrous metals, plastics and wood.
  • All our cobalt drill bits are manufactured from high grade M35 alloyed HSS steel with 5% Cobalt content and are fully ground from solid material.
  • This cobalt drill bit set is manufactured to DIN338 specifications and they are dimensionally precise. These HSSCO HSS drill bits can be used in pillar drills, handheld electric drills, battery powered drills etc and can also be used in CNC machines
  • 135° split point from 3mm and above eradicates the need to pre-drill or centre punch. Prevents walking and enables faster penetration.
  • Our high-quality M35 HSS drill bits for metal offer exceptional hardness, heat resistance, and durability. Our 2 flute design is optimised for fast chip removal and smooth cutting. This pack of 10 cobalt jobber drills are supplied in a plastic storage case. These are ideal for professionals, DIY enthusiasts and home improvement enthusiasts
9.5/10
Available at Amazon
3
Bosch Professional 25-Piece PointTeQ HSS Twist Drill Bit Set (for Metal, ProBox, Drill Driver Accessories)

Bosch Professional 25-Piece PointTeQ HSS Twist Drill Bit Set (for Metal, ProBox, Drill Driver Accessories)

  • The Professional 25pc. HSS PointTeQ ProBox Metal Drill Bit Set from Bosch - fast drilling in metal due to PointTeQ tip design
  • Increased drilling rate generates less heat and wear
  • Cylindrical shank compatible with three-jaw drill chucks
  • Ideal for drilling holes into alloyed and unalloyed steel, non-ferrous metals, plastics and wood
  • Scope of delivery: 25 x Bosch Professional HSS PointTeQ Twist Drill Bits for Steel - Ø 1/1.5/2/2.5/3/3.5/4/4.5/5/5.5/6/6.5/7/7.5/8/8.5/9/9.5/10/10.5/11/11.5/12/12.5/13 mm
9.4/10
Bestseller
Available at Amazon
4
Milwaukee 4932352374 Drill, Set 19 Piece 1-10mm

Milwaukee 4932352374 Drill, Set 19 Piece 1-10mm

  • Milwaukee 4932352474 set of 19 pieces 1-10 mm
  • Ideal Product
  • Red Case
9.3/10
Available at Amazon
5
Hi-Spec 99pc Complete HSS Mixed Drill Bit Set. 1 to 10mm Titanium Coated High Speed Steel Drill Bits for Metal, Wood & Plastic. All In a Box Case

Hi-Spec 99pc Complete HSS Mixed Drill Bit Set. 1 to 10mm Titanium Coated High Speed Steel Drill Bits for Metal, Wood & Plastic. All In a Box Case

  • GET DRILLING DONE: For everyday DIY jobs, drill quickly and accurately in soft metals eg. aluminium, mild steel, wood, plasterboard/drywall and plastics. NB. Not suited for heat-treated or hardened steel
  • 14 METRIC SIZES: The most-used sizes of round-shank twist drill bits for the electric drill driver. 99pc x Metal Drill Bits: 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 8, 10mm
  • BETTER HSS STEEL: Using High-Speed Steel alloy (HSS4241), they cut faster, withstand higher temperatures and retains hardness for longer than ordinary high-carbon steel bits
  • LONG-LIFE TITANIUM COATING: Their golden vapour-deposited Titanium Nitride coating increases surface hardness and lubrication properties. Get improved wear resistance and sharpness with reduced friction and sticking
  • IN A COMPACT BOX CASE: Take them anywhere in the slim storage tray case - separated into compartments with a protective foam insert. Sizes are handily printed under the lid which is closed tightly by a steel-catch
  • Hi-Spec DIY Home Series – Holiday Ready Tools: Celebrate the season with Hi-Spec DIY Home Series tools, perfect for those who love to craft, repair, and improve their homes. From the smallest fixes to the grandest holiday projects, our tools bring reliability and ease to every task, helping you create the home of your dreams this holiday season.
9.2/10
Available at Amazon
6
Bosch Professional 2608587014 19-Piece HSS-Cobalt ProBox Metal Drill Bit Set (for Stainless Steel, Accessories for Drill Drivers), Gold, 1mm-10mm

Bosch Professional 2608587014 19-Piece HSS-Cobalt ProBox Metal Drill Bit Set (for Stainless Steel, Accessories for Drill Drivers), Gold, 1mm-10mm

  • The Professional 19pc. HSS-Cobalt ProBox Metal Drill Bit Set from Bosch - long-lasting performance when drilling stainless steel
  • Cobalt alloy and fully ground HSS provide wear resistance and heat protection. Two cutters and two flutes remove chips quickly to make the bits last even longer
  • Cylindrical shank compatible with three-jaw drill chucks
  • Ideal for drilling holes into stainless steel
  • Scope of delivery: 19 x Bosch Professional HSS-Co Twist Drill Bits for stainless steel - Ø 1/1.5/2/2.5/3/3.5/4/4.5/5/5.5/6/6.5/7/7.5/8/8.5/9/9.5/10 mm
9.1/10
Available at Amazon
7
Bosch Professional 18pcs. HSS Twist Drill Bit PointTeQ (for Metal, in ToughBox, Ø 1-10 mm, Accessory Drill)
Bosch

Bosch Professional 18pcs. HSS Twist Drill Bit PointTeQ (for Metal, in ToughBox, Ø 1-10 mm, Accessory Drill)

  • HSS Twist Drill Bit PointTeQ enables fast drilling in metal due to PointTeQ tip design
  • Self-centering tip prevents wandering, making quick and easy drilling starts possible
  • Increased drilling rate generates less heat and wear
  • PointTeQ tip design remains sharp and ensures continuous durability
  • Scope of delivery: Bosch Professional 18pcs. HSS Twist Drill Bit PointTeQ - Ø 1,0; 1,5; 2,0; 2,0; 2,5; 3,0; 3,0; 3,5; 4,0; 4,0; 4,5; 5,0; 5,5; 6,0; 7,0; 8,0; 9,0; 10,0 mm
9.0/10
Available at Amazon
8
DEWALT DT7926-XJ EXTREME 2 HSS-G 29pc Drill Bit Set

DEWALT DT7926-XJ EXTREME 2 HSS-G 29pc Drill Bit Set

  • Extreme 2 tip offers clean, accurate holes and reduces lock up on breakthrough
  • A tapered web provides greater durability to reduce breaking
  • Ideal for drilling into metal, wood and plastic
  • Up to 4 times faster drilling than standard HSS-R drill bits
  • The bits also incorporate a no spin shank that eliminates the frustration of bit spinning in the chuck
8.9/10
Available at Amazon
9
3PCS Premium HSS & Cobalt Spiral Step Drill Bit Sets (1/4"-7/8"), TiAlN Coated for Superior Durability, Cone Drill Bit for Sheet Metal, Stainless Steel, Aluminum, Wood, Plastic and DIY Projects

3PCS Premium HSS & Cobalt Spiral Step Drill Bit Sets (1/4"-7/8"), TiAlN Coated for Superior Durability, Cone Drill Bit for Sheet Metal, Stainless Steel, Aluminum, Wood, Plastic and DIY Projects

  • ✅ VERSATILE 3PCS SET - Includes three step drill bits with varying sizes: #1 (1/4" - 5/16" - 3/8" - 7/16" - 1/2"), #2 (1/4" - 9/32" - 5/16" - 11/32" - 3/8" - 13/32" - 7/16" - 15/32" - 1/2"), and #3 (5/16" - 3/8" - 7/16" - 1/2" - 9/16" - 5/8" - 11/16" - 3/4" - 13/16"- 7/8"). These metal drill bits come in a box so they can be storage well.
  • ✅ PREMIUM M35 HSS - Constructed from M35 high speed steel with 5% cobalt content, these step drill bits offer exceptional durability and superior cutting performance, even on tough materials like stainless steel (＜1mm).
  • ✅ ADVANCED TIALN COATING - The Titanium Aluminium Nitride (TiAlN) coating ensures high hardness and excellent wear resistance, extending the lifespan of the drill bits and maintaining sharpness for longer periods.
  • ✅ 118°X TYPE OPENINGS DESIGN - Designed with a spiral flute for smooth, clean drilling and enhanced chip removal. Achieve precise holes effortlessly, reducing the need for multiple drill bits.
  • ✅ IDEAL FOR DIY & PROFESSIONAL USE - Whether you’re a DIY enthusiast or a professional, this step drill bit set is perfect for various applications, including drilling in sheet metal, aluminium, copper, wood, plastic, and more. Not only can it enlarge holes, but it also deburrs, chamfers, and cutting.
  • ✅ COMPATIBLE WITH VARIOUS DRILLS - 1/4"(6.35mm) Hex shank design eliminate slipping in drill chuck, these step drill bits are compatible with a range of drilling tools including bench drills press, impact drills, and hand drills, making them a versatile addition to your toolkit.
  • ❗ KIND TIPS - To prevent overheating and potential damage to the drill bits, always use cutting oil or spraying water during operation. Proper cooling extends the life and efficiency of the bits.
8.8/10
Available at Amazon
10
Presch Wood Drill Bit Set HSS Cobalt 8 pcs - Cobalt Alloyed HSS Wood Drill Bits for All Types of Wood - Durable Professional Wood Twist Drill Bit Set - Ø 3-10mm

Presch Wood Drill Bit Set HSS Cobalt 8 pcs - Cobalt Alloyed HSS Wood Drill Bits for All Types of Wood - Durable Professional Wood Twist Drill Bit Set - Ø 3-10mm

  • Sharp - Our 8-piece HSS Cobalt brad point drill bit set impresses with extremely sharp cutting edges, which permanently prevent the drill holes from fraying. Ø 3, 4, 5, 6, 6, 8, 8, and 10mm.
  • Pinpoint accuracy - Thanks to the centring point, the twist drill bit bores the hole exactly where it is wanted. For box column and hand drills.
  • Made in Austria - The 5% cobalt alloy of our hardwood drill bits for wood ensures a long service life so you can enjoy your new wood drill bit set for a long time.
  • Ready to hand - With the practical drill bit box, we make it very easy for you to store your wood twist drill bits. This way you can find your wood drill bits again quickly.
  • High quality - The cobalt drill bits are heat resistant up to 650°C and therefore suitable for drilling soft and hard woods, chipboard and hardboard.
8.7/10
Available at Amazon

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MYLEK 204 Piece Drill Bit And Screwdriver Accessory Set - HSS, Cobalt, High Speed for Use on Wood, Masonry, Metal, Plastic & More - With Storage Case

MYLEK 204 Piece Drill Bit And Screwdriver Accessory Set - HSS, Cobalt, High Speed for Use on Wood, Masonry, Metal, Plastic & More - With Storage Case

BOSCH CO14B 14-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

BOSCH CO14B 14-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

3mm 10pcs M35 HSS Gold Cobalt Jobber Drill Bit Set, Metric High Speed Steel Drill Bit Set for Drilling Stainless Steel & Hard Metal, Cast Iron, Copper, Aluminum

3mm 10pcs M35 HSS Gold Cobalt Jobber Drill Bit Set, Metric High Speed Steel Drill Bit Set for Drilling Stainless Steel & Hard Metal, Cast Iron, Copper, Aluminum

Gunpla Cobalt Drill Bits 3mm 10-Pieces, M35 HSS Metric Straight Shank Jobber Drill Bit Set with Plastic Case for Hardened Stainless Steel, Metal, Aluminium, Tile, Wood, Plastic and Cast Iron…

Gunpla Cobalt Drill Bits 3mm 10-Pieces, M35 HSS Metric Straight Shank Jobber Drill Bit Set with Plastic Case for Hardened Stainless Steel, Metal, Aluminium, Tile, Wood, Plastic and Cast Iron…

True 5% Cobalt Drill Bit Set, 13Pcs M35 High Speed Steel Twist Drill Bits 1.5mm-6.5mm, 135° Split Point Extremely Heat Resistant for Stainless Steel, Cast Iron, Hard Metal, Plastic, Wood

True 5% Cobalt Drill Bit Set, 13Pcs M35 High Speed Steel Twist Drill Bits 1.5mm-6.5mm, 135° Split Point Extremely Heat Resistant for Stainless Steel, Cast Iron, Hard Metal, Plastic, Wood

IRWIN Drill Bit Set, M35 Cobalt Alloy Steel Steel, 29-Piece (3018002)

IRWIN Drill Bit Set, M35 Cobalt Alloy Steel Steel, 29-Piece (3018002)

DEWALT Cobalt Alloy Steel Drill Bit Set with Pilot Point, 14-Piece (DWA1240)

DEWALT Cobalt Alloy Steel Drill Bit Set with Pilot Point, 14-Piece (DWA1240)

BOSCH CO14 14-Piece Cobalt Metal Drill Bit Set

BOSCH CO14 14-Piece Cobalt Metal Drill Bit Set

Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)

Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)

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