Updated:03 November 2026
Rank 1-11 of the best Stainless Steel Drills
Our recommendation Price Customer rating
1. Comparison winner
STROTON M35 Cobalt Step Drill Bit 4-32mm
STROTON M35 Cobalt Step Drill Bit 4-32mm
Available immediately
free shipping
  • rockwell hardness of 66-69 provides excellent durability and wear resistance
  • compatible with stainless steel, iron plate, aluminium, wood, PVC and plastic
  • suitable for high temperature applications due to material's heat resistance
Our rating
9,8
very good
FOCSTOL Countersink Drill Bit Set, Cobalt, Round Shank, 6pcs (6.3/8.3/10.4/12.4/16.5/20.5 mm) for Stainless Steel, Copper, Aluminium, Wood, Plastic
FOCSTOL Countersink Drill Bit Set, Cobalt, Round Shank, 6pcs (6.3/8.3/10.4/12.4/16.5/20.5 mm) for Stainless Steel, Copper, Aluminium, Wood, Plastic
Available immediately
free shipping
  • hardness and wear resistance: built from m35 high speed steel to deliver high hardness, sharp edges and long service life; cobalt plating adds corrosion resistance
  • material compatibility: suitable for drilling and countersinking and chamfering on stainless steel up to 1 mm thickness, copper, aluminium and other metals, wood and plastics, with slower drilling speed advised for stainless steel
  • heat resistance: fast chip removal and heat dissipation help keep the tool cooler during use; cobalt plating provides additional corrosion resistance
Our rating
9,8
very good
3. Bestseller
Meccion TCT Carbide Hole Saw Drill Bit Set (16-50mm) Industrial Grade
Meccion TCT Carbide Hole Saw Drill Bit Set (16-50mm) Industrial Grade
Available immediately
free shipping
  • the cutter is made from carbide with a tungsten tip delivering high hardness and long service life for reliable cutting
  • suitable for cutting a range of metals including stainless steel, cast iron, alloys and brass
  • provides heat management with a hardened tip; for stainless steel plates over 5 mm thick, apply coolant to prevent overheating and prolong tool life
Our rating
9,8
very good
4. Best value
ITEMPESTI M35 Cobalt TiAlN-Coated Step Drill Bit (4-20mm, 9 steps)
ITEMPESTI M35 Cobalt TiAlN-Coated Step Drill Bit (4-20mm, 9 steps)
Available immediately
free shipping
  • Hardness and wear resistance: the M35 cobalt HSS core provides high hardness and heat resistance, while the TiAlN coating increases wear resistance and extends tool life
  • Material compatibility: the bit is optimised for stainless steel, metal alloys, wood and plastic
  • Heat resistance: the tool has high temperature tolerance and the TiAlN coating helps maintain hardness under heat
Our rating
9,6
very good
ITEMPESTI HSS Drill Bit Set M35 Cobalt, 1.5-6.0 mm, 10-piece, hex shank, storage case, for stainless steel and hard metals
ITEMPESTI HSS Drill Bit Set M35 Cobalt, 1.5-6.0 mm, 10-piece, hex shank, storage case, for stainless steel and hard metals
Available immediately
free shipping
  • Hardness and wear resistance: m35 cobalt alloy construction provides high hardness and wear resistance to maintain edge life when drilling tough metals such as stainless steel, cast iron and alloy steel
  • Material compatibility: suitable for drilling hard metals including stainless steel, cast iron and alloy steel
  • Heat resistance: tips are specially hardened to resist blunting and maintain performance in high temperature drilling conditions
Our rating
9,6
very good
Gunpla Cobalt Drill Bits 10mm, 2-Piece Set, M35 HSS Straight Shank Jobber Drill Bits
Gunpla Cobalt Drill Bits 10mm, 2-Piece Set, M35 HSS Straight Shank Jobber Drill Bits
Available immediately
free shipping
  • high hardness and wear resistance provided by M35 cobalt high-speed steel enabling long life under frequent and intense drilling
  • suitable for drilling hardened metals and other materials such as steel, stainless steel, cast iron, high temperature alloys, titanium alloys, hard plastics and wood
  • designed to resist heat buildup allowing use at high speeds up to 350 RPM without the need for coolant
Our rating
9,5
very good
Mimhooy 10-Piece 5mm Cobalt HSS Drill Bit Set for Stainless Steel and Hard Metals
Mimhooy 10-Piece 5mm Cobalt HSS Drill Bit Set for Stainless Steel and Hard Metals
Available immediately
free shipping
  • hardness up to HRC 63–65 with high wear resistance
  • suitable for drilling a range of materials from hard metals such as stainless steel and cast iron to softer materials like wood and aluminium alloy
  • versatile use across metals and softer materials with efficient cutting and reduced need for pre-drilling
Our rating
9,5
very good
Meccion HSS Cobalt Jobber Drill Bits 6.0mm 5‑Pack for Stainless Steel and Metal
Meccion HSS Cobalt Jobber Drill Bits 6.0mm 5‑Pack for Stainless Steel and Metal
Available immediately
free shipping
  • hardness and wear resistance the drill bit is hardened to around HRC 63–64 to resist wear during heavy drilling
  • material compatibility this drill bit is suitable for drilling metals, stainless steel, cast iron, alloy steel, hard plastics and wood
  • heat resistance heat treated for high temperature performance to withstand elevated drilling temperatures
Our rating
9,4
good
4 mm Cobalt Metal Drill Bit Set, 10 Pieces
4 mm Cobalt Metal Drill Bit Set, 10 Pieces
Available immediately
free shipping
  • drill bits made from high-grade HSS steel with 5% Cobalt content ensuring durability and resistance to wear
  • suitable for drilling stainless steel, hardened metal, and standard metals as well as aluminium, titanium alloy, non-ferrous metals, plastics, and wood
  • offers superior heat resistance allowing for sustained high-efficiency drilling
Our rating
8,9
good
Misuyue 4-Piece 4 mm 8% Cobalt M42 Drill Bit Set
Misuyue 4-Piece 4 mm 8% Cobalt M42 Drill Bit Set
Available immediately
free shipping
  • high hardness and wear resistance achieved with 8% cobalt high speed steel and precision grinding that keeps drill bits durable and delivers smooth chip removal
  • suitable for drilling through hardened materials such as stainless steel, steel plate, iron sheet, titanium alloy and cast iron
  • excellent heat resistance from cobalt content and heat treatment along with a nanoscale gold titanium coating that reduces friction and guards against wear and corrosion
Our rating
8,8
good
3mm M35 HSS Gold Cobalt Jobber Drill Bit Set, 10 Pieces for Stainless Steel and Hard Metals
3mm M35 HSS Gold Cobalt Jobber Drill Bit Set, 10 Pieces for Stainless Steel and Hard Metals
Available immediately
free shipping
  • high hardness and wear resistance from m35 high speed steel with 5 per cent cobalt to maintain cutting performance and longevity
  • wide material compatibility enabling drilling in cast iron, copper, aluminium, stainless steel, sheet metal, wood and plastic
  • excellent heat resistance by using a fully ground spiral body that removes chips quickly and reduces friction and heat, improving accuracy
Our rating
7,5
satisfactory

Similar Stainless Steel Drill comparisons

Stainless Steel Drills buying guide: How to choose the right product from the above Stainless Steel Drills test or comparison

Understanding the Basics of Stainless Steel Drills: A Simple Overview

What Are Stainless Steel Drills?

When we talk about stainless steel drills, we’re referring to drill bits specifically designed for drilling into stainless steel materials. These drills are made from high-speed steel or ultra-hard carbide, enabling them to cut through the tough, non-corrosive metal effectively. Unlike standard drill bits, stainless steel drills feature a sharp, precise tip and a robust flute design, which prevents them from dulling quickly.

Why Choose Stainless Steel Drills?

Stainless steel is often chosen for its resistance to rust and corrosion, making it an ideal material in various industries, including automotive and construction. However, drilling into stainless steel can be challenging due to its hardness. Thus, using the right drill bit not only ensures efficiency but also produces clean, precise holes, which is crucial for professional and DIY projects alike.

Key Features to Look For When Buying Stainless Steel Drills

Material Composition Matters

The material of the drill bit significantly influences its performance. High-speed steel (HSS) bits are commonly used for stainless steel since they offer a good balance between toughness and wear resistance. Alternatively, cobalt steel bits provide an extra edge in heat resistance, making them suitable for heavier-duty applications.

Tip Geometry for Efficiency

The tip of the drill bit plays a vital role in the drilling process. We should look for bits that have a split point or a 135-degree tip angle. This geometry helps in reducing walking when starting the hole and enhances chip removal, ensuring heat doesn’t build up during the process.

Flute Design for Better Performance

The flute design of a drill bit dictates how debris and chips are removed from the hole as you drill. A wider flute allows for better chip evacuation, reducing friction and heat. When selecting a stainless steel drill, prioritising those with an efficient flute design will make the drilling process smoother and prolong the life of the bit.

Choosing the Right Size: How to Select the Perfect Drill Bit for Your Job

Understanding Size Measurements

Drill bits come in a variety of sizes, measured in diameters, such as metric or imperial sizes. Knowing the specific diameter needed for your project is essential. For instance, if you’re working with bolts or dowels, matching the drill size to the bolt diameter is crucial for a snug fit.

How to Determine the Right Size for Your Project

We suggest measuring the thickness of the material before selecting a drill bit size. If you’re not certain, opting for a set of drill bits offers versatility while ensuring you have the right size on hand for various tasks. Additionally, using a step bit can be beneficial for specific projects, as it allows you to drill multiple sizes with the same tool.

Top Recommendations for Stainless Steel Drills: Our Expert Picks

Best Overall Drill Bit Set

For an all-around great choice, we recommend a high-speed steel drill bit set with a titanium coating. This set provides durability and performs well on different materials, especially stainless steel. The variety of sizes offered in the set ensures you have the right bit for any task.

Best Heavy-Duty Option

If you require robust performance, look for cobalt steel drill bits. These are exceptional for penetrating harder stainless steel grades and maintaining sharpness for longer periods. A set of cobalt bits will serve you well for professional-grade projects.

Best Budget-Friendly Choice

If you’re working on lighter projects or have budget constraints, consider a basic high-speed steel drill bit set. These bits are affordable yet reliable and perfect for occasional use. They might lack some advanced features but still get the job done for DIY enthusiasts.

Maintenance Tips for Prolonging the Life of Your Stainless Steel Drill

Proper Cleaning After Use

Cleaning your drill bits after every use can significantly extend their lifespan. We recommend wiping them down with a cloth to remove any debris and lubricating them with machine oil to prevent rust accumulation.

Avoid Overheating During Use

When drilling, keeping the bit cool is crucial to prevent it from dulling quickly. Using cutting oil during the drilling process not only helps with cooling but also aids in chip removal. Additionally, take breaks if you’re working on larger projects to allow the bit to cool down naturally.

Store Bits Correctly

Finally, storing your drill bits properly can help in maintaining their sharpness and overall condition. We recommend keeping them in a protective case or a designated drill bit holder to prevent them from knocking against each other, which can dull the tips.

Table of contents
  1. Understanding the Basics of Stainless Steel Drills: A Simple Overview
  2. Key Features to Look For When Buying Stainless Steel Drills
  3. Choosing the Right Size: How to Select the Perfect Drill Bit for Your Job
  4. Top Recommendations for Stainless Steel Drills: Our Expert Picks
  5. Maintenance Tips for Prolonging the Life of Your Stainless Steel Drill

Overview

1. Comparison winner
STROTON M35 Cobalt Step Drill Bit 4-32mm
Our rating
9,8
very good
STROTON M35 Cobalt Step Drill Bit 4-32mmAvailable immediately
FOCSTOL Countersink Drill Bit Set, Cobalt, Round Shank, 6pcs (6.3/8.3/10.4/12.4/16.5/20.5 mm) for Stainless Steel, Copper, Aluminium, Wood, Plastic
Our rating
9,8
very good
FOCSTOL Countersink Drill Bit Set, Cobalt, Round Shank, 6pcs (6.3/8.3/10.4/12.4/16.5/20.5 mm) for Stainless Steel, Copper, Aluminium, Wood, PlasticAvailable immediately
3. Bestseller
Meccion TCT Carbide Hole Saw Drill Bit Set (16-50mm) Industrial Grade
Our rating
9,8
very good
Meccion TCT Carbide Hole Saw Drill Bit Set (16-50mm) Industrial GradeAvailable immediately
4. Best value
ITEMPESTI M35 Cobalt TiAlN-Coated Step Drill Bit (4-20mm, 9 steps)
Our rating
9,6
very good
ITEMPESTI M35 Cobalt TiAlN-Coated Step Drill Bit (4-20mm, 9 steps)Available immediately
ITEMPESTI HSS Drill Bit Set M35 Cobalt, 1.5-6.0 mm, 10-piece, hex shank, storage case, for stainless steel and hard metals
Our rating
9,6
very good
ITEMPESTI HSS Drill Bit Set M35 Cobalt, 1.5-6.0 mm, 10-piece, hex shank, storage case, for stainless steel and hard metalsAvailable immediately
Gunpla Cobalt Drill Bits 10mm, 2-Piece Set, M35 HSS Straight Shank Jobber Drill Bits
Our rating
9,5
very good
Gunpla Cobalt Drill Bits 10mm, 2-Piece Set, M35 HSS Straight Shank Jobber Drill BitsAvailable immediately
Mimhooy 10-Piece 5mm Cobalt HSS Drill Bit Set for Stainless Steel and Hard Metals
Our rating
9,5
very good
Mimhooy 10-Piece 5mm Cobalt HSS Drill Bit Set for Stainless Steel and Hard MetalsAvailable immediately
Meccion HSS Cobalt Jobber Drill Bits 6.0mm 5‑Pack for Stainless Steel and Metal
Our rating
9,4
good
Meccion HSS Cobalt Jobber Drill Bits 6.0mm 5‑Pack for Stainless Steel and MetalAvailable immediately
Our product comparisons are:
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Our tests and comparisons are objective and fact-based. Manufacturers have no influence on the ratings. We aim to provide greater transparency in the market, thereby promoting product quality.
Method-driven
In our tests & comparison tables, we only include products that meet our minimum standards. This ensures that you can find the perfect product for your needs from a wide selection.
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