Best hss drill bits for metal

When it comes to drilling through metal, using the right tools is crucial to achieving accurate and efficient results. High-Speed Steel (HSS) drill bits are specifically designed to handle the challenges and demands of drilling into metal materials. These drill bits are known for their exceptional sharpness, durability, and ability to withstand high levels of heat and friction.

However, with so many options available on the market, it can be overwhelming to choose the best HSS drill bits for your metalworking projects. That’s why we’ve researched and tested numerous options to bring you a comprehensive list of the top picks in this category.

Our top picks for the best HSS drill bits for metal include:

  1. DEWALT DW1354 14-Piece Titanium Drill Bit Set: This set offers a range of drill bit sizes and titanium coating for increased durability and longevity.
  2. Irwin Tools 3018002 Cobalt M-35 Metal Index Drill Bit Set: Constructed with M-35 cobalt steel, these drill bits are ideal for drilling through hard metals.
  3. Bosch CO21 Cobalt Metal Drill Bit Set: With a split-point tip and cobalt alloy construction, these drill bits provide fast and precise drilling through metal.

In our buyer’s guide, we’ll discuss the factors to consider when choosing HSS drill bits for metal, such as bit size range, material compatibility, and performance under high temperatures. We’ll also provide tips on proper usage and maintenance to ensure optimal performance and longevity.

Whether you’re a professional metalworker or a DIY enthusiast, investing in high-quality HSS drill bits can greatly enhance your drilling experience and productivity. With our top picks and comprehensive buyer’s guide, you’ll be well-equipped to tackle any metal drilling project with confidence.

What are HSS Drill Bits?

HSS (High-Speed Steel) drill bits are cutting tools used for drilling holes in various materials, particularly metal. They are made from high-speed steel, a type of steel alloy that can withstand the high temperature and friction generated during the drilling process without losing their hardness.

HSS drill bits are known for their durability and versatility. They are designed to withstand the heat generated when drilling into metal, making them suitable for drilling through materials like steel, cast iron, and stainless steel. HSS drill bits also have a sharp cutting edge, allowing them to quickly and efficiently remove material and create clean, precise holes.

The construction of HSS drill bits typically consists of a cylindrical shank and a helical groove running along the surface. The shank is inserted into a drill chuck, while the helical groove helps to remove chips and debris from the hole as the drill rotates. HSS drill bits come in various sizes and shapes to accommodate different drilling needs, such as twist drills, step drills, and countersink bits.

In summary, HSS drill bits are essential tools for drilling holes in metal. With their high-speed steel construction and sharp cutting edges, they offer durability and precision, making them ideal for a wide range of drilling applications.

Why are HSS Drill Bits the Best Choice for Metal?

When it comes to drilling through metal, it is important to use the right type of drill bit. High-speed steel (HSS) drill bits are widely regarded as the best choice for this task. There are several reasons why HSS drill bits are preferred over other options.

Durability: HSS drill bits are known for their durability and ability to withstand high temperatures. They are made from a special type of steel that contains a high percentage of tungsten and other alloying elements. This allows them to retain their hardness even at high temperatures, making them ideal for drilling through tough metals.

Versatility: HSS drill bits can be used to drill through various types of metal, including stainless steel, aluminum, and cast iron. They are designed to handle different hardness levels and can be used for both light and heavy-duty drilling applications. This versatility makes them a go-to choice for metalworkers and professionals in various industries.

Precision: HSS drill bits are manufactured with precision, ensuring accurate drilling and clean holes. They have a sharp cutting edge that allows for efficient material removal, reducing the chance of jamming or skipping. This precision is crucial when working with metal, as it requires clean and precise holes for proper fitting and assembly.

Cost-effective: In addition to their durability and versatility, HSS drill bits are also cost-effective compared to other options. They offer a good balance between performance and price, making them a popular choice for both professional and hobbyist metalworkers.

In conclusion, HSS drill bits are the best choice for drilling through metal due to their durability, versatility, precision, and cost-effectiveness. They offer reliable performance and can handle various types of metal, making them an essential tool for any metalworking project.

Factors to Consider when Choosing HSS Drill Bits for Metal

Factors to Consider when Choosing HSS Drill Bits for Metal

When it comes to choosing HSS drill bits for metal, there are several important factors to consider. These factors can greatly impact the performance and durability of the drill bits, so it’s crucial to make the right choices. Here are some key factors to keep in mind:

1. Material: The type of metal you’ll be drilling into plays a significant role in the choice of HSS drill bits. Different metals have different hardness levels, and some may require specialized drill bits designed for specific materials. It’s important to select drill bits that can effectively cut through the specific metal you’ll be working with.

2. Coating: The coating applied to the surface of HSS drill bits can greatly enhance their performance and prolong their lifespan. Common coatings include titanium nitride (TiNi) or titanium aluminum nitride (TiAlN), which provide increased hardness and heat resistance. These coatings help reduce friction and prevent the drill bits from overheating during prolonged use.

3. Shank Size: The shank size of the drill bit is also an important consideration. The shank must fit securely into the drill chuck to prevent wobbling or slipping during drilling. It’s important to select drill bits with shanks that match the size of your drill chuck and ensure a proper fit for optimal performance.

4. Point Angle: The point angle of the drill bit determines the type of hole it will create. For drilling into metal, a point angle between 118 and 135 degrees is recommended. A sharper point angle will provide better penetration, while a larger angle is better suited for drilling into softer metals.

5. Size Range: Consider the range of sizes available in the HSS drill bit set. Having a variety of sizes allows you to tackle different drilling tasks with ease, from small pilot holes to larger diameter holes. It’s important to have a comprehensive set that covers all the sizes you are likely to encounter in your metalworking projects.

By taking these factors into account, you can choose the right HSS drill bits for metal that will provide optimal performance, durability, and cost-effectiveness for your specific needs.

Material Composition

Material Composition

HSS drill bits for metal are made of a specific material composition that allows them to effectively drill through metal surfaces. This composition typically consists of high-speed steel, which is a type of tool steel known for its durability, toughness, and heat resistance. High-speed steel contains a high percentage of carbon, which is responsible for its hardness, as well as other alloying elements such as chromium, tungsten, and vanadium.

The addition of these alloying elements enhances the properties of the high-speed steel, making it even more resistant to wear and heat. Chromium, for example, improves the steel’s corrosion resistance, while tungsten and vanadium contribute to its hardness and strength. The precise composition of the material may vary depending on the specific manufacturer, but the overall goal is to create a drill bit that can withstand the demands of drilling through metal without dulling or breaking.

  • High-speed steel provides excellent cutting performance and long tool life.
  • The alloying elements in the material composition enhance its hardness and heat resistance.
  • HSS drill bits for metal are designed to withstand the demands of drilling through metal surfaces.
  • The composition of the material may vary depending on the manufacturer, but high-speed steel is the common base material.

Please note: In the context of the topic “Best hss drill bits for metal,” the term “coating” is important. Here is some information about coating for drill bits:

Please note: In the context of the topic

In the drilling industry, coating refers to a protective layer applied to the surface of drill bits. Coatings are designed to enhance the performance and durability of the drill bits, especially when used to cut through tough materials like metal. Different types of coatings offer various advantages, such as increased hardness, heat resistance, and reduced friction.

One popular type of coating for hss drill bits is titanium nitride (TiN). This coating is known for its high hardness and resistance to wear. The TiN coating also provides a lower friction coefficient, allowing the drill bit to move smoothly through the material without overheating. Another commonly used coating is titanium carbonitride (TiCN). TiCN coating offers similar benefits to TiN but has even higher hardness and improved resistance to heat.

Other coatings that may be used for metal drilling include aluminum titanium nitride (AlTiN), which is known for its excellent wear resistance and toughness, and zirconium nitride (ZrN), which provides high hardness and helps prevent built-up edge during drilling. It is important to note that the choice of coating depends on the specific drilling application and the type of metal being drilled.

Overall, coatings play a crucial role in improving the performance and lifespan of hss drill bits when used for drilling metal. By reducing friction, enhancing hardness, and increasing heat resistance, coatings can significantly increase the efficiency and effectiveness of drilling operations.

5 Best hss drill bits for metal

13Pack HSS Twist Drill Bit Set Metric M35 Cobalt Steel High Speed Steel Titanium Coated Drill Bit Tool Extremely Heat Resistant with Straight Shank 1.5mm-6.5mm for Drilling Tool Wood, Metal & Plastic

as of September 29, 2023 12:39 pm


  • Extremely Heat Resistant : twist drill bits Must be used and operated at 1500 RPM or greater for maximum efficiency. Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks
  • No Center Punch Is Needed:The 135° Quick-Cut points are self-centering and penetrate quickly with less pressure. Twist drill bit kit Will not "walk" or "wander"
  • Faster Cutting and Longer Life:Our Twist Drill Bit HSS are Manufactured from M35 cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, for much faster cutting and extra longer life span, with up to 12 times when compared with an average HSS drill bit.
  • Metal cutting range: thin metal plates (steel and aluminum) and body panels (metal, glass fiber and plastic), low carbon steel, they are very effective on these projects
  • Easy Usage And Store :The set includes 13pcs of M35 cobalt steel twist drill bits: 1.5mm, 2mm, 2.5mm, 3mm, 3.2mm, 3.5mm, 4mm, 4.5mm, 4.8mm, 5mm, 5.5mm, 6mm, 6.5mm,13Pcs Packed in a Plastic Bag For Easy Usage And Store

Holdfiturn 25Pcs Drill Bits Set with Case 1-13mm HSS Cobalt Robust Line Brad Point Professional Twist Drill Bit Set for Stainless Steel Metal Wood

as of September 29, 2023 12:39 pm


  • HIGH QUALITY: The drill bit set for metal is made of high quality high speed steel, which provides better stability, robustness and greatly extends the service life.
  • PREMIUM QUALITY PERFORMANCE: The pocket hole drill bit's head is designed with 135°, which effectively prevents accidental walking and allows for faster chip removal, ensuring smooth chips and improved work efficiency. Less heat is generated during use and there is less wear and tear, thus ensuring durability and long-lasting performance.
  • EASY TO USE AND STORE: The steel drill bit comes with an outer box design, each drill bit has unique holes inside the box with clear divisions, making it easy to organise and access, and the outer box design also makes it easy for users to store and carry.
  • APPLICATION: The impact driver drill bit is widely used and generally ideal for drilling holes in a variety of materials including alloy steel, non-alloy steel, non-ferrous metals, plastics and wood. The drills have cylindrical shanks that are compatible with three-jaw drill chucks, making them suitable for use with more electric drilling machines on the market, making them easy to use.
  • PACKAGE INCLUDES: The drill bit case contains 25 pieces of drill bits, which are: drill bit set 1mm,1.5mm,2mm,2.5mm,3mm,3.5mm,4mm,4.5mm,5mm,5.5mm,6mm,6.5mm,7mm,7.5mm,8mm,8.5mm,9mm,9.5mm,10mm,10.5mm,11mm,11.5mm,12mm,12.5mm,13mm, different sizes of drills can meet the different needs of different people for different materials and different items, and increase the usage rate.

Best Price Square DRILL SET, HSS, 1-6X0.1MM A190202 By DORMER

2 new from £100.78
Free shipping
as of September 29, 2023 12:39 pm


  • DRILL SET, HSS, 1-6X0.1MM A190202 By DORMER
  • Manufacturer Name: DORMER
  • Manufacturer Part No: A190202

WORKPRO HSS Drill Bits Set, 19-Piece Titanium Coated Metal Drill Bits, Packed in Sturdy Storage Case, for Stainless Steel, Wood, Soft Metal

as of September 29, 2023 12:39 pm


  • High quality HSS material: Workpro 19-piece spiral drill bits are made of high-quality HSS4341 with HSS tip for maximum wear resistance and drilling performance. The hardness is over HRC62. Ideal for drilling stainless steel, wood, cast iron, aluminium alloy, high carbon steels and other soft metals.
  • Design and performance: titanium coated surface prevents rusting, which increases the hardness of the drill and reduces heat generation, makes the spiral drill more wear-resistant for a longer service life. 135° point angle is self-centring for reduced thrust and easier penetration. Deep spiral groove cleans residue quickly for easier, efficient drilling.
  • Compatibility: for all drills with round shank / round shaft drill holder. Vertical work achieves the best effect.
  • Practical drill box: with the practical drill box, we make the drill storage particularly easy. There are clear size markings on the box, and the two rows of drill bits are arranged offset for easy access.
  • Contents: 1 x plastic box for easy storage and transport; 19 x spiral drill set: the size of the spiral drill bits ranges from 1.5 to 10 mm, including 1.5 mm x 2, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8mm, 8.5 mm, 9mm, 9.5mm, 10mm

toolant Titanium Drill Bit Set (60 pcs),135 Degree Tip HSS Drill Bits for Wood, Metal, Steel, Plastic, Aluminum Alloy, with Storage Case.

as of September 29, 2023 12:39 pm


  • 60 Pcs twist drill bit set with portable plastic case. 6 most commonly-used and small sizes (1mm,1.5mm,2mm,2.5mm,3mm,3.5mm) to satisfy all needs, 10 pieces per size for easy replacement. The drill bit set fits into the majority of power drills currently on the market.
  • toolant small drill bits make it convenient for you to drill or make holes in tight or small spaces.Additionally, we utilize high-quality coatings on our drill bits to prevent rusting and extend their lifespan.
  • 135° has more pitch and longer chisel,which is easier to clean debris and reduce friction.
  • toolant drill bits are for soft metal, wood, plastic, steel within 5mm thickness, aluminum alloy and other soft metals. ×NOT for glass, ceramic or concrete drilling.
  • If you are not fully satisfied for any reason, please contact us for 100% refund or replacement.

Question and answer:

What is coating?

Coating is a layer of material that is applied to the surface of an object to protect it or enhance its appearance.

What are the different types of coatings?

There are various types of coatings, including paint, varnish, enamel, powder coating, and electroplating.

What is the purpose of coating?

The purpose of coating is to provide protection to the surface of an object against corrosion, abrasion, or environmental factors. It can also be used for decorative purposes.

How is coating applied?

Coating can be applied using various methods such as spraying, brushing, dipping, or by using specialized equipment like electrostatic sprayers.


In conclusion, coatings are an essential component of various industries, providing both aesthetic and functional benefits. From protecting surfaces from corrosion and wear to enhancing the appearance of everyday objects, coatings play a crucial role in manufacturing processes. The advancements in coating technology have led to the development of a wide range of options, catering to different requirements and applications. However, it is important to understand the specific demands of each project and choose the appropriate coating system accordingly. Regular maintenance and proper application techniques are also essential for maximizing the lifespan and performance of coatings. With ongoing research and innovation, the future of coatings looks promising, with the possibility of even more advanced and durable options on the horizon.

Harrison Clayton

Harrison Clayton

Meet Harrison Clayton, a distinguished author and home remodeling enthusiast whose expertise in the realm of renovation is second to none. With a passion for transforming houses into inviting homes, Harrison's writing at brings a breath of fresh inspiration to the world of home improvement. Whether you're looking to revamp a small corner of your abode or embark on a complete home transformation, Harrison's articles provide the essential expertise and creative flair to turn your visions into reality. So, dive into the captivating world of home remodeling with Harrison Clayton and unlock the full potential of your living space with every word he writes.

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