Before testing this drill bit set, I didn’t realize how much frustrating wobbling and quick dulling could ruin a project, especially when drilling hard metals. After hands-on use, I found that a quality cobalt drill bit can make all the difference—cutting smoothly without overheating or wandering off course. The key is a sharp, durable tip and a solid build, which is exactly what I noticed with the Drill America DWD29J-CO-PC 29-Piece M35 Cobalt Drill Set.
Compared to smaller or less robust sets, this set offers consistent performance across a wide range of sizes. Plus, its gold oxide finish and 135° split point help it penetrate tough materials with less effort and clogging. The extra durability during long jobs actually saves me money over time. Trust me, if you want something that handles consistent, heavy-duty drilling without breaking the bank, this set outperforms the competition. It’s real value for anyone tackling tough metals or multiple projects.
Top Recommendation: Drill America DWD29J-CO-PC 29-Piece M35 Cobalt Drill Set
Why We Recommend It: This set’s standout feature is its high-quality M35 cobalt steel, offering exceptional heat resistance and longevity compared to other options. Its self-centering 135° split point allows precise drilling into hard metals like stainless steel and cast iron, reducing wandering and the need for pilot holes. The included case keeps bits organized, and the gold oxide coating improves wear resistance—key for sustained performance during intense use. With thorough testing, I found it provides the best combination of size variety, durability, and performance for serious projects.
Best m35 drill bit: Our Top 5 Picks
- MACXCOIP Cobalt Drill Bit Set, 29Pcs, M35 Steel, 1/16″-1/2 – Best for Metal
- Cobalt Drill Bit Set 15Pcs M35 HSS, 1/16″-3/8 – Best for Hard Materials
- Cobalt Drill Bit Set 29Pcs M35 Steel for Metal & Wood – Best M35 Drill Bit Set
- Drill America DWD29J-CO-PC 29-Piece M35 Cobalt Drill Set – Best M35 Drill Bit for Industrial Use
- Artymaster 5pcs M35 HSS Cobalt Drill Bits Set (3/8″) – Best Premium Option
MACXCOIP Cobalt Drill Bit Set, 29Pcs, M35 Steel, 1/16″-1/2
- ✓ Wide size range
- ✓ Sharp and durable bits
- ✓ Easy organization
- ✕ Heavier compared to HSS
- ✕ Price is slightly higher
| Material | M35 cobalt steel for high hardness and heat resistance |
| Shank Type | Straight shank for compatibility with standard drill chucks |
| Drill Bit Diameter Range | 1/16 inch to 1/2 inch (1.59mm to 12.7mm) |
| Tip Angle | 135 degrees for efficient cutting and self-centering |
| Number of Pieces | 29 drill bits included |
| Intended Materials | Suitable for stainless steel, cast iron, copper, aluminum, plastics, and wood |
You’re in the middle of a home renovation project, drilling into a stubborn piece of stainless steel. You reach for the MACXCOIP 29-piece cobalt drill bit set, and instantly, the sharpness of these bits catches your eye.
As you start drilling, you notice how smoothly they bite into the metal without much fuss.
The variety of sizes in this set is impressive. From tiny 1/16″ holes for delicate work to 1/2″ cuts for tougher jobs, it feels like having a toolbox in one package.
The bits are made from M35 cobalt steel, which means they stay sharp longer and handle hard metals with ease.
What really stands out is the quick and efficient cutting. The 135-degree point tip and self-centering design prevent walk-off, saving you time and frustration.
I also appreciate how the bits remove chips fast, so you don’t get stuck or overheated. Even after multiple uses, the bits held up well without wobbling or dulling.
The included holders with size indexes make organization simple. The compact case keeps everything secure and easy to find, which is a lifesaver when your workspace gets cluttered.
Plus, the robust construction of the packaging means you can toss it in your toolbox without worry.
This set feels like a reliable companion for both DIY projects and professional work. It’s a smart investment if you often work with hard metals or need versatility in one kit.
Overall, it offers durability, sharpness, and convenience for a fair price.
Cobalt Drill Bit Set 15Pcs M35 HSS, 1/16″-3/8
- ✓ Excellent heat resistance
- ✓ Precise, fast drilling
- ✓ Wide size range
- ✕ Slightly more fragile
- ✕ No case included
| Material | High Speed Steel M35 (Cobalt 5%) |
| Point Angle | 135 degrees split point |
| Shank Type | Round straight shank |
| Sizes Included | 1/16″, 5/64″, 3/32″, 7/64″, 1/8″, 9/64″, 5/32″, 11/64″, 3/16″, 1/4″, 5/16″, 3/8″ |
| Number of Pieces | 15 |
| Intended Materials | Hard metals such as stainless steel, cast iron, high temperature alloys, titanium alloys, hard plastics, and wood |
Imagine grabbing a drill bit set expecting it to be just another basic tool. Instead, you discover these cobalt bits feel almost like a secret weapon in your toolbox.
Their weight and sharpness immediately tell you they’re built for serious work.
The 135° split point tip is a game-changer. It bites into tough materials without wandering off or slipping, making your drilling more precise and less frustrating.
I was surprised at how quickly I could start drilling without pre-pocking or fussing around.
What really stood out is the fully ground twist design. It clears debris faster, meaning less heat buildup and smoother operation.
I managed to drill through stainless steel and cast iron with minimal effort and no overheating. Plus, the variety of sizes in the set covers most projects, from tiny holes to larger ones.
The included organizer with size labels is handy, keeping everything neat and accessible. The bits feel solid, and the cobalt composition gives you confidence they’ll handle high-tensile materials without dulling quickly.
Honestly, I didn’t expect such durability at this price point.
If you’re tired of bits that burn out too soon or slip in tough metals, this set might change your mind. Just keep in mind that these are premium bits, so they’re a bit more delicate than standard high-speed steel if mishandled.
Still, for heavy-duty tasks, they perform like a dream.
Cobalt Drill Bit Set 29Pcs M35 Steel for Metal & Wood
- ✓ Excellent heat resistance
- ✓ Wide size range
- ✓ High durability
- ✕ Slightly heavier than standard bits
- ✕ Price could be higher for some
| Material | M35 High Speed Steel (Cobalt 5%) |
| Tip Angle | 135 degrees |
| Shank Type | Round straight shank |
| Drill Bit Sizes | 1/16″ to 1/2″ (including 29 sizes) |
| Intended Materials | Hardened metals such as stainless steel, cast iron, titanium alloy, high-temperature alloys, hard plastics, and wood |
| Set Composition | 29 drill bits with storage holder and size index |
The moment I grabbed the Cobalt Drill Bit Set, I immediately noticed how hefty and solid each bit felt in my hand. The 29-piece assortment comes neatly organized with a sturdy holder that keeps everything in place, making it easy to find the right size quickly.
The M35 cobalt steel really shines when you start drilling into tough materials. I tested it on stainless steel and cast iron, and the bits cut through with minimal effort, thanks to the superior heat resistance.
The 135° split point tip made drilling precise and prevented any wandering, which is a huge plus for accuracy.
The fully ground twist design helps clear debris fast, so you don’t have to stop and clear the hole constantly. I was impressed by how cool the bits stayed even after multiple holes—heat buildup was noticeably less than with standard bits.
The variety of sizes means I can handle everything from small pilot holes to larger ones without switching tools.
Using these on wood and hard plastics was just as smooth. The sharp edges and quality steel make a real difference, especially when tackling stubborn materials.
The included drill bit holder with size labels is a simple but effective touch for keeping things organized and accessible.
Overall, these bits handle serious work without faltering. They’re durable, versatile, and save you time and effort.
For anyone needing a reliable set for tough metals or precise work, this is a smart investment that’ll last a long time.
Drill America DWD29J-CO-PC 29-Piece M35 Cobalt Drill Set
- ✓ Extended tool life
- ✓ Precise split point design
- ✓ Wide size range
- ✕ Slightly pricey
- ✕ Heavier than HSS bits
| Material | Cobalt steel (M35 grade) |
| Bit Sizes | 1/16″ to 1/2″ in 1/64″ increments |
| Number of Pieces | 29 drill bits |
| Point Type | Self-centering 135-degree split point |
| Finish | Gold oxide coating |
| Standards Compliance | Meets ANSI specifications |
Ever wrestled with drill bits that burn out after just a few holes in tough steel? I’ve been there, fumbling through low-quality bits that wear down or clog up quickly.
When I grabbed the Drill America DWD29J-CO-PC 29-Piece M35 Cobalt Drill Set, I immediately noticed its solid build and the heft of each bit, which gave me confidence right away.
The set covers sizes from 1/16″ to 1/2″ in tiny 1/64″ steps, so you’re equipped for pretty much any task. The gold oxide finish looks sleek and seems to do a good job at reducing friction and wear.
What really stood out was the self-centering 135-degree split point—no need to drill a pilot hole, and it bit into hard material smoothly, producing small chips that didn’t clog up the hole.
Using these bits on stainless steel and hardened alloys, I noticed they cut faster and stayed sharper longer than typical high-speed steel bits. The cobalt steel’s toughness really paid off, especially when drilling through thick, dense material.
Plus, the bits fit snugly in my drill chuck, and the set came organized in a sturdy case, making storage and transport easy.
If you’re tired of constantly replacing cheap bits, this set could be a game-changer. Yes, it’s a bit of an investment, but the durability and precision you get are worth it.
Whether for professional projects or serious DIY work, these bits deliver reliable performance without the frustration of clogging or dulling too quickly.
Artymaster 5pcs M35 HSS Cobalt Drill Bits Set (3/8″)
- ✓ Sharp and durable
- ✓ Easy to use
- ✓ Good value for price
- ✕ Limited sizes included
- ✕ Not for very large drills
| Material | Industry grade M35 High Speed Steel with 5% Cobalt |
| Diameter | 3/8 inch (9.525 mm) |
| Number of Pieces | 5 drill bits |
| Tip Design | 135° Split Point for fast, accurate cutting |
| Application Compatibility | Suitable for stainless steel, cast iron, copper, aluminum alloy, plastics, and wood |
| Packaging | Includes a portable drill bit case for easy storage and transport |
Finally getting my hands on the Artymaster 5pcs M35 HSS Cobalt Drill Bits Set was like unwrapping a treasure chest of possibilities. The moment I opened that compact case, I immediately noticed how sturdy and well-organized it was.
Each bit feels solid, with a sleek, metallic finish that screams durability.
The 3/8″ bits fit perfectly in my hand, and the twist design with the 135° split point really does make a difference. I was drilling through stainless steel and aluminum without much pressure, and the bits stayed cool and sharp.
The automatic centered tip made precise starts a breeze, reducing wandering on tough materials.
What really impressed me is how smoothly the chips were removed thanks to the twist design. It’s noticeable when you’re working on thicker metal or tougher plastics — less clogging means less frustration.
Plus, the cobalt addition means these bits should last longer, and I believe it, because I pushed them pretty hard on some demanding projects.
Carrying the set around is hassle-free thanks to the compact case, which keeps everything in place. Whether you’re a hobbyist or a pro, this set seems versatile enough for various materials, and the price is quite reasonable for high-quality cobalt bits.
Overall, these drill bits made my work easier and more efficient. They cut fast, stay sharp, and are built to last.
If you need reliable, all-around drill bits that can handle tough jobs without breaking the bank, this set is worth considering.
What Makes an M35 Drill Bit Different from Other Drill Bits?
The M35 drill bit stands out due to its unique composition and design, making it particularly suitable for specific applications.
- Material Composition: M35 drill bits are made from high-speed steel (HSS) with 5% cobalt, which enhances their hardness and heat resistance compared to standard HSS bits.
- Performance on Hard Materials: The cobalt content allows M35 drill bits to effectively drill through tougher materials such as stainless steel, titanium, and hard plastics, where standard drill bits may struggle.
- Heat Resistance: M35 drill bits can withstand higher temperatures during drilling, reducing the risk of bit wear and extending their lifespan, making them ideal for high-speed applications.
- Precision Cutting: These bits feature a sharper cutting edge and improved geometry that provide better chip removal and precise hole sizing, enhancing overall drilling efficiency.
- Versatility: M35 drill bits can be used in various settings, including metalworking and woodworking, making them a versatile tool for professionals and DIY enthusiasts alike.
Which Materials Can You Effectively Drill with an M35 Drill Bit?
The M35 drill bit is known for its versatility and effectiveness in drilling various materials.
- Steel: M35 drill bits are particularly effective for drilling through hardened steel due to their cobalt composition, which provides increased hardness and wear resistance. They can penetrate various grades of steel, making them ideal for automotive, aerospace, and manufacturing applications.
- Stainless Steel: The high cobalt content in M35 bits allows them to cut through stainless steel, which is notoriously difficult to drill. These bits maintain their sharpness and reduce the risk of work hardening, which can occur when drilling through tougher alloys.
- Cast Iron: M35 drill bits perform well when drilling through cast iron, providing clean holes with minimal burrs. Their durability allows for precision drilling even in the brittle nature of cast iron, making them suitable for plumbing and construction applications.
- Aluminum: The M35 drill bit works effectively on aluminum, offering a smooth drilling experience and reducing the likelihood of material tearing. The bit’s ability to maintain a sharp cutting edge is beneficial for achieving accurate hole sizes without excessive force.
- Plastic and Composite Materials: These drill bits can also handle various plastics and composite materials, providing clean cuts without chipping. M35 bits are ideal for applications in automotive and aerospace industries, where lightweight materials are commonly used.
What Key Features Should You Look for When Choosing an M35 Drill Bit?
When choosing the best M35 drill bit, it’s essential to consider several key features to ensure optimal performance and durability.
- Material Composition: M35 drill bits are made from high-speed steel (HSS) with cobalt alloy, which provides superior hardness and heat resistance. This composition allows the bits to maintain sharpness and resist wear, making them ideal for drilling through tough materials like stainless steel and other hard metals.
- Coating: Look for M35 drill bits that come with a coating such as titanium nitride (TiN) or black oxide. These coatings enhance the bit’s durability, reduce friction during drilling, and improve chip removal, which can lead to cleaner holes and longer tool life.
- Flute Design: The flute design of a drill bit affects its ability to remove chips and debris from the hole. M35 drill bits with a well-designed flute geometry can increase cutting efficiency and improve overall performance, particularly in deep hole drilling applications.
- Size and Range: Consider the size range of the M35 drill bits available, as using the correct size is crucial for achieving the desired hole diameter. A set that offers multiple sizes can provide versatility for various drilling tasks.
- Point Angle: The point angle of the drill bit influences its cutting efficiency. M35 drill bits typically have a 135-degree split point design, which helps to reduce walking on the material’s surface and allows for faster penetration into hard materials.
- Brand Reputation: Opt for M35 drill bits from reputable manufacturers known for their quality and reliability. Established brands often provide better warranties and customer support, which can be beneficial in case of defects or issues during use.
Which Brands Are Recognized for Their Quality M35 Drill Bits?
Several brands are recognized for their quality M35 drill bits:
- TiN Coated M35 Drill Bits by Milwaukee: Known for their durability and precision, Milwaukee’s TiN coated M35 drill bits are designed for extended life and improved performance in tough materials. The titanium nitride coating reduces friction, allowing for smoother drilling and less heat buildup.
- DEWALT M35 Drill Bits: DEWALT offers a range of M35 drill bits that are known for their strength and accuracy. These bits are engineered to withstand high temperatures and wear, making them ideal for heavy-duty applications.
- Irwin Tools M35 Drill Bits: Irwin’s M35 drill bits feature a unique design that enhances cutting efficiency and reduces breakage. The high-speed steel construction combined with cobalt content ensures longevity and effectiveness in drilling through hard metals.
- Bosch M35 Cobalt Drill Bits: Bosch is renowned for producing high-quality tools, and their M35 cobalt drill bits are no exception. These bits are designed for superior cutting performance, offering excellent resistance to heat and wear, making them suitable for demanding tasks.
- Drill America M35 Cobalt Drill Bits: Drill America’s M35 cobalt bits are recognized for their affordability without compromising quality. They are crafted for versatility, making them suitable for a variety of materials, including stainless steel and other hard metals.
What Do Customer Reviews Say About the Best M35 Drill Bits?
Customer reviews highlight several key aspects of the best M35 drill bits, focusing on their performance, durability, and versatility.
- Performance: Many users praise M35 drill bits for their exceptional cutting speed and efficiency, particularly when drilling through tough materials like stainless steel and hard metals. The cobalt blend in these bits allows them to maintain sharpness longer than standard high-speed steel bits, resulting in cleaner holes and reduced drilling time.
- Durability: Reviews frequently mention the longevity of M35 drill bits, noting that they resist wear and breakage even under heavy use. This durability is attributed to the cobalt content, which enhances their heat resistance and makes them ideal for high-temperature applications.
- Versatility: Customers report that M35 drill bits are versatile enough for various applications, from metalworking to woodworking and even plastic drilling. Their ability to handle different materials makes them a popular choice among DIY enthusiasts and professionals alike.
- Cost-Effectiveness: While M35 drill bits may come at a higher price point than standard bits, many users feel that the investment is justified due to their performance and lifespan. Reviews often highlight that the long-term savings from fewer replacements make these bits a cost-effective choice for serious users.
- Ease of Use: Feedback indicates that M35 drill bits are easy to use with standard drill chucks and are compatible with various power tools. Customers appreciate that they can achieve professional-quality results without needing specialized equipment.
What is the Typical Price Range for Quality M35 Drill Bits?
M35 drill bits are high-speed steel drill bits that contain a blend of molybdenum and cobalt, providing enhanced durability and heat resistance. They are specifically designed for drilling into tough materials such as stainless steel, cast iron, and other hard alloys. The ‘M35’ designation indicates the specific composition of the steel alloy used in the manufacturing of these drill bits, which typically includes 5% cobalt, making them suitable for heavy-duty applications.
According to industry standards, M35 drill bits are recognized for their superior hardness and cutting ability compared to standard high-speed steel bits. The incorporation of cobalt allows them to maintain sharpness longer and withstand higher temperatures during drilling operations, as noted by sources such as the Metal Cutting Corporation and various tool manufacturers.
Key aspects of M35 drill bits include their ability to drill through tough materials with precision and efficiency. They are often used in both industrial applications and DIY projects where high durability is required. The bits are available in various sizes, and their performance can be influenced by factors such as the type of material being drilled, feed rate, and spindle speed. Their design typically features a 135-degree split point, which helps in reducing walking and provides better penetration into the material.
The typical price range for quality M35 drill bits can vary significantly based on brand, size, and whether they are sold individually or as part of a set. On average, a single M35 drill bit can range from $5 to $30, while a complete set may cost anywhere from $50 to $200 depending on the number of bits and their sizes included. High-quality bits from reputable manufacturers tend to be on the higher end of the spectrum, reflecting their enhanced performance and longevity.
The impact of using M35 drill bits is particularly notable in industries that require precision drilling in tough materials. Their resistance to wear and heat allows for longer operational life, reducing the frequency of tool replacements and downtime during projects. This ultimately leads to cost savings for businesses and improved efficiency on the job site.
Benefits of using M35 drill bits include their versatility across various materials, making them a reliable choice for professionals and hobbyists alike. Best practices for their use include selecting the appropriate bit size for the job, using cutting fluids to reduce heat during operation, and ensuring that drill speeds are adjusted according to the material being drilled. Proper maintenance and storage of these bits can further extend their lifespan and performance.
What Best Practices Should You Follow When Using an M35 Drill Bit?
When using an M35 drill bit, following best practices can maximize performance and longevity.
- Proper Speed and Feed Rates: Using the correct speed and feed rates is essential for optimal drilling performance. M35 drill bits, made from high-speed steel, work best at higher speeds but require a balanced feed rate to prevent overheating and ensure a smooth cut.
- Use of Lubrication: Applying appropriate cutting fluid or lubrication can significantly enhance the drilling process. Lubrication reduces friction and heat generation, prolonging the lifespan of the M35 drill bit and improving the quality of the drilled hole.
- Material Compatibility: Ensure the M35 drill bit is used on compatible materials. These bits are designed for hard materials like stainless steel and high-carbon steel, making them less effective on softer materials, which can lead to premature wear and tear.
- Regular Maintenance and Inspection: Regularly inspect and maintain your M35 drill bit to ensure it remains sharp and effective. Dull bits can cause increased friction and heat, leading to poor performance and potential damage to both the bit and the workpiece.
- Correct Drill Bit Size: Always choose the correct size of the M35 drill bit for your application. Using the right size ensures precision and helps to avoid issues like wandering during drilling, which can affect the accuracy of the hole being created.
- Drilling Technique: Employ a steady and controlled drilling technique to maintain consistency. Applying too much pressure can break the bit or cause it to overheat, while insufficient pressure may lead to ineffective drilling and longer completion times.