This post is just a guide to simplify the process of finding the best cobalt drill bit sets. Something else you will love about the drill bits is that they provide excellent performance coupled with maximum speed. Drilling with dull bits slows the process and causes overheating. I am a professional writer and blogger. Recommended Best Cobalt Drill Bits Reviews Irwin Tools 3018002 Cobalt M-35 Metal Index Drill Bit Set. Equipped with a gold oxide finish to act as a lubricant and provide wear resistance, The best cobalt drill bits can make a huge difference in how you work. They are grade M35 and contain 5% cobalt. We Got Something For You! Drill America M35 Cobalt Drill Bit Set, DWDCO Series. Counterbores are mainly ideal for drilling through plastics and wood. What Are the Different Types of Cobalt Drill Bits? And the DEWALT DW1263 14-Piece Set is proof of that. 4-BEST COBALT DRILL BITS FOR METALS. We will also look into the different types of cobalt drill bits and how to find the right one for your needs. You can also find these bits with a 5% cobalt blend (M35). Drill Hog M42 Cobalt Drill Bit Set. It is best not to use them to dig through metals because they may break. You can find the 15-piece kit for $39.97 or the 29-piece kit for $138.97. There are also some options (bit size and pcs) for buying it. Cobalt Drill Bit, Bosch CO21B 21 Pc. Twist cobalt bits. Premium M42 8% Cobalt Steel ,68-70 HRC (Rockwell Hardness Scale) ,Usually Give the Best Heat,Wear and Chip Resistance and Long Tool Life. Luckily, we are here to help you choose the best cobalt drill bits that are available in the market. Shank Silver and Deming Drill Bit Set in Aluminum Carry Case; 4. 3 Steps Desigh for Cutting through Stainless Steel,Hard Metals,Aluminum,Plastic. Another critical aspect to consider when purchasing cobalt drill bits is their tip point design. x 4 In. One of its top-rated cobalt drill bits is the DEWALT Cobalt Drill Bit Set. The Drill America DWD29J-CO-PC Qualtech jobber length drill bit set features 29 cobalt steel drill bits with gold oxide finish in inch sizes 1/16" to 1/2" in 1/64" increments. PROFESSIONAL & WIDELY USE: M35 Cobalt HSS is more suitable for hardened material. Diamond drill bits are used for materials such as glass and tile; black oxide bits are common for plastics and carbon. A specialty drill bit is a drill bit used for a specific material and a specific purpose (as opposed to general-purpose drill bits to which we are used). A good number of drill bit sets come with a range of drill bit sizes. Best Cobalt Drill Bits Comparison; Top 10 Best Cobalt Drill Bits Review; 1. Cobalt is the “Go To” metal when you want to add extra vitality to your drill bits. Our best Cobalt drill bits for metal drilling are made from an alloy of 8% cobalt (M42). DEWALT DW1263 – Best Cobalt Pilot-Point Tip Drill Bits. The set of twist drill bits have a heavy-duty construction. DEWALT Titanium Drill Bit Set, Pilot Point, 21-Piece (DW1361) 2. Several top-rated brands have done a lot of heavy lifting to provide the best tools in the market. Best Cobalt Drill Bit Set – Drill Hog. The best part is that they have an abrasion-resistant construction that makes them drill about 30% faster than other drill bits. That also … Irwin does drill bits right with their M42 5% cobalt high-speed steel bits that deliver abrasive resistance when working with tough metals. CO-Z 5pcs Hss Cobalt Drill Bit Set; 5. amoolo M35 HSS Cobalt Drill Bit Set; 4. For stainless steel, we recommend our TCT drill bits Cobalt bits have increased strength and heat-resistance relative to plain HSS tools. Acquiring the very best cobalt drill bits set is a purchase that you will not should replace for several years. Top 5 Best Cobalt Drill Bits – Experts Pick, #1 COMOWARE Cobalt Drill Bit Set- 15pcs M35 High-Speed, #2 DEWALT Cobalt Drill Bit Set with Pilot Point, (DWA1240), #3 Bosch CO14B 14 Pc. 100% SATISFACTION GUARANTEE: If you are not 100% satisfied with your purchase for any reason whatsoever simply please feel free to contact us. At an 8% cobalt level, these are one of the strongest drill bits available. You can drill through tough/hard metals easily. When compared to the other full sets on this list, the Drill America bits hold their own, … Best industrial-grade cobalt drill bits: IRWIN Industrial Tools 316015 Cobalt Drill Bits. Why will you buy the cobalt bits? Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard 9.2 8.7 America DWDCO 29 Pc M35 Cobalt Drill Bit Set; 7. The drill bits offered by … Bosch could be relied on for durable, well-crafted devices fit … The storage case is also not as sturdy as what we expected from the brand, so you may have to invest in an alternate storage unit. Cobalt drill bits are well known for being very strong and resistant to heat and are perfect for … Bits fiddling with Cobalt can become harder than steel. DEWALT DW1263 point drill bit, 5. Drilling hardened steel. The Sufficiently Sharp Bit Edge Can Cut the Metal Material into Long Strips of Iron Chips rather than Slowly Grinding Throng the Material with a Blunt Drill Bit. Cobalt drill bits are a combination of a base alloy (usually steel) and a small amount of cobalt. Here we have populated the best options available for you. Clearly the best drill bits for hardened metal or steel come with a cobalt blend. The COMOWARE drill bit set is one I have in my toolbox, and I can tell you that it ticks all the right boxes as far as quality and overall performance is concerned. Contents. CO-Z drill bits set, 4. In case your primary goals are to drill through wood, it is best to choose countersink drill bits. For those in search of a versatile drill bit kit, this is an ideal product to buy. These step drill bits can penetrate deep into the metal with remarkable ease. There is nothing not to love about this drill bit set for hardened steel, or metal. If you are looking for a complete set that provides any size between 1/16 and ½ inches, then this is a great option for you. A plastic carry case is also included for convenient storage. Prevent walking, clear chips and particles faster.Produced by precision fully ground which ensures chips move smoothly. This drill bit set is ideal for anyone searching for tough cobalt drill bits that can bore into hard metal like cast iron, stainless steel, and titanium. Its web design gives great durability and strength. Best metal drill bits are known to come in a lot of shapes and sizes, and they are available in a slightly wide variety of base materials and coatings. Do you need to find the best cobalt drill bits? The cobalt generally makes up anywhere between 5% and 8% of the material used to produce the drill bit. Cobalt twist drill bits are used for all sorts of surfaces and materials. All the bits have an industrial-grade cobalt … Several simple tips can help you make the most out of your metric drill bits. They are most definitely a beneficial investment for any person taking care of metals regularly. View Product On Amazon. These drill bit set comes with a 100% satisfaction guarantee. Cobalt drills are going to be able to give you a much harder drill bit for all your drilling needs. So, before purchasing this set, make sure your drill’s speed is adjustable. The strength of twist cobalt bits complements their short length. We Got Something For You! They will be able to make light work of most materials, including metal. Moreover, the tools also feature a split-point tip with a 135-degree angle for enhanced stability when twisting and spinning your drill. These drill bits are grade M35, and this means they contain 5% cobalt. Sealey AK4701 19 piece HSS Cobalt Split Point Fully Ground Drill Bit Set Review. The package comes with 14 bits that range from 1/16″ to 3/8″. When you’re looking for the best cobalt drill bits for the money, the 15-piece kit presents a compelling option. It seems to me that DEWALT manufactures the best cobalt drill bits with the pilot-point design for the tips. Selecting a product that gives the best value for your investment requires a lot of patience. Moreover, these best cobalt drill bits for metal come at affordable prices. DEWALT Cobalt Drill Bit Set with Pilot Point, 14-Piece (DWA1240), Bosch CO14B 14 Pc. After analyzing the best cobalt drill bits, we felt that the number one choice for a customer looking to buy a cobalt drill bits will be Bosch CO2143 1/4 In. Bosch is another great brand that has been around since 1886. This dramatically reduces the risk of clogging and increases your ability to create clean holes with unmatched accuracy. Irwin drill bits have an innovative geometry that helps to start the job faster. It is imperative first to find out whether a specific product has a 145-degree, 140-degree, 135-degree, 120-degree, or 90-degree angle. These types of bits feature a flat bottom design, with a small hole at the center that cuts through all kinds of surfaces. The performance of the drill bits is also quite reliable. Best Cobalt Drill Bit Set – Drill Hog. But if you need a drill bit for masonry drilling, you should check out these drill bits for concrete. It also helps with quick material removal to increase your chances of creating clean and accurate holes. Best Choice bits set, 7. Best Drill Bits for Hardened Metal or Steel. They heated up quickly, even when we used a lubricant. You could also use them to bore holes in woods, plastics, and other softer materials. Cobalt alloy increases the toughness and durability. The reasons are high performance, reliability, and build quality. This fact alone makes a good number of shoppers too excited that they forget the main reasons why they need cobalt drill bits. INTOO Industry Drill Bit Set; 9. Craftsman 9-64085 bit set, & 8. A cobalt drill bit contains about 5% steel alloy and 8% cobalt. Let’s begin by finding out who makes the best quality cobalt drill bits. 8 Top Picks - best cobalt drill bits review: 1. The Best Cobalt Drill Bits for Heavy-Duty Projects When you need to bore through metal, cobalt is the only material that will do. In case you are a freshman in using drills and drill bits, this is a set I highly recommend. Drill Hog M42 is a cobalt drill bit set that contains 29 drill bits and … Well, the shape and size of a cobalt drill bit can influence its usage. A: Cobalt steel drill bits are ideal for use with hard metals, like cast iron or stainless steel, because they can be sharpened and have high heat resistance. This enables the tool to withstand extreme temperatures without breaking or shuttering. Hymnorq may not be as popular as DeWalt or Bosch, although it is undoubtedly a brand that is gradually growing a grand following. I like starting my reviews with products I have tried and tested in person. The drill bits have great durability and low breaking probability. Particularly successful in cutting through hard metals such as stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics and woods, and also can be used for softer materials. We have done a thorough in-depth physical analysis for every single cobalt drill bits and for maximum benefit, do read the complete article. The stepped design also makes it possible for users to drill all kinds of holes that differ in diameter. And another unique feature with these tools is that they have a gold oxide coating that enhances their appearance and makes them more heat resistant. For the price, you get 14 durable and high-performance bits that are engineered to take on tough drilling tasks with remarkable ease. Cobalt drill bits are particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too. No wobbling, zigzag, walking, and wandering of drill bits … It is also crucial to use lubricants because this will help reduce the chances of your drill bits breaking when in use. For use on alloy & hardened steel, cast iron and titanium. It’s hard to find a cobalt drill bit set that beats the Drill America DWDCO performance-wise. Also the Best Cobalt Drill Bits (for the money) When the tips on these bits dull, consider sharpening them since cobalt runs throughout the steel. x 4 In. You can use these bits to drill into both hardened steel, metal and wood. Cobalt Drill Bit. Q: What is the best drill bit for hardened steel? Also, ensure that the bits you choose are compatible with your power tool. Cobalt Drill Bit. Just like titanium drill bits, cobalt drill bits are not made entirely of cobalt. chuck sizes. Specialty drill bits can be best brad point drill bits, drill saws, glass & tiles, plug cutters, screw pilots, step drills, etc. Searching For The silicone iphone 7 case? Without quality bits, your drill is practically useless. You have heard that drill bits come in different shapes and sizes. Cons Indexing on carrying case is difficult to read. x 4 In. This could be a great choice among the 5 best drill bits for hardened steel. Whether you need sturdy drill bits for home machining, industrial operations, or construction projects, this is a product that will not disappoint. 8. Most known cobalt alloys are M35 and M42. They range from 1.5mm to 6.5mm, so you get all the standard sizes that are frequently used during drilling applications. Instead, they are made of an alloy of high-speed steel and cobalt. The difference between an average HSS drill bit and a cobalt drill bit is that the cobalt drill bit has been made using cobalt steel blended with a high percentage of cobalt. Now that you have all-rounded information about who makes the best cobalt drill bits. Best drill bits I’ve ever used by far, I purchased several different cobalt bits trying to drill into a broken cylinder head bolt to extract it and not one would do more then scratch the hardened head bolt. Cobalt Drill Bits. We have highlighted the top 5 cobalt drill bits in today’s markets. Please read continue to learn more about the various options of smallest iphone speaker... Searching For The mp3 waterproff? In case you often need to drill into harder materials such as titanium and stainless steel, it is better to invest in cobalt drill bits. Cobalt drill bits are HSS bits made of a steel alloy with up to 8% cobalt. Finally, if you are on a budget, … Drill America bit set, 3. IRWIN Drill Bit … Also Consider: DeWalt 29 pc Industrial Cobalt Pilot Point Drill Bit Set (DWA1269) Cobalt drill bits unlike the name suggests are not of pure cobalt but are an alloy of cobalt and steel. TWIST DESIGN & PERFORMANCE: PRECISE 135°SPLIT POINT, gold oxide finish and round straight shanks. A specialty drill bit is a drill bit used for a specific material and a specific purpose (as opposed to general-purpose drill bits to which we are used). Drill bits can enhance the overall performance of your power tools. They have a tapered fastener head that enhances their stability and eliminates spinning or twisting when the bits are installed in a power tool. This tip angle allows the self-centering of the bits to eliminate walking. Your new cobalt bits will certainly be capable of managing alloys, hardened steel, cast iron, stainless-steel and even titanium easily. Different types of drill bits are used to cut holes in different types of materials. These aspects include their brand, the number of pieces in a specific kit, and also the quality of materials used in creating the bits. SIZE INCLUDED: Drill bit set 29pcs include 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", 3/8", 25/64", 13/32", 27/64", 7/16", 29/64", 15/32", 31/64", 1/2",which can meet more requirements, HSS DRILL BIT SET :HSS cobalt drill bit set for hardened steel has excellent cutting performance, drill bit set 29pcs can be used for a long time, The cutting edge is hardened and honed for sharpness, with superior sharpness, accurate cutting without shaking, M35 COBALT CHARACTERISTICS : M35 cobalt drills bit set is effective in drilling tough, high tensile strength materials，drill bit is especially good at cutting hard metals such as stainless steel, cast iron, superalloy, titanium alloy, hard plastic and wood. Another remarkable feature is the heavy-duty split-point tip that ensures easy penetration into the hardest of surfaces. DeWalt is one of the most reputable manufacturers of hand and power tools in the world. There are two types of Cobalt Alloys at work. Our final set of cobalt bits comes from Drill America. Considerations While Buying a Cobalt Drill Bit for Yourself, Best Drill Bits For Hardened Steel In 2021, Best Drill Bits for Porcelain Tile In 2021. This brand is a junior of Stanley Black & Decker Inc. In return, your work becomes more manageable when boring through hard materials. In this post, I’ll help you discover the 5 best products in the market. 8 Best Cobalt Drill Bits December 2020 Results are Based on. The reasons are high performance, reliability, and build quality. Because you only get what you pay for, do not be tempted to settle for the cheapest product you can find. In this case, more length means less toughness and less durability. Best Cobalt Drill Bits 2020. This creates a clear view and makes it swift to complete applications that need higher levels of precision. The Sealey 19 Piece Split Point Fully Ground HSS Cobalt Drill Bit Set are specifically designed for drilling extra hard materials and their tough and durable construction make them some of the best best drill bits for stainless steel.. However, there are two types of bits that share the same popularity because of how effective they are. These cobalt drill bits use an alloy including 5%–8% cobalt. x 2-3/4 In. When you’re looking for the best cobalt drill bits for the money, the 15-piece kit presents a compelling option. However, the cobalt construction and unique Pilot Point tips make the DeWalt DW 1263 our top pick. There is something about lesser-known brands that draws me to them. These HSS drill bits are fully ground with 5% cobalt. Check Cobalt bits Price and Availability Cobalt vs HSS drill bits – application HSS drill bits are good for drilling in materials such as plastic, wood, and mild steel. If you have any questions regarding the selection of cobalt drill bits, kindly contact us. Search by brand including Drill America, Cobalt and KEO or by category such as Home & Garden, Tools & Workshop Equipment and Drill Bits. Ranging from 1/16″ to a 1/2″ bit in the increment of 1/64″, different choices are also available, whether you are a handyman or a beginner. Co-z Hss Cobalt Multiple Hole 5-pc, 50 sizes Drill Bit Set with Aluminum Case. Please mark the spot that you are to drill for easier drilling and improved drill bits life. The split point drill bit is a top choice for most people because it tends to have reliable penetration capacity. Bosch 21 Piece Cobalt Metal Drill Bit Set. These bits deliver the highest tensile drilling strength and are excellent for tough applications. – Composition: titanium bits are made of carbon steel or high speed steel with TiN, TiAN or TiCN coating, cobalt bits are HSS bits with cobalt in alloy. Editor Rating: Kicking us off is this set of 29 bits from Irwin Tools. Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. Almost all the options that we have chosen are budget-friendly and can be purchased from Amazon. Bosch 21-Piece Cobalt Twist Drill Bits. Cobalt drill bits come in all shapes and sizes for drilling. Find which cobalt drill bits matches you. Cobalt Drill Bit. The 5% cobalt alloy is known as M35 grade, 8% alloy is called M42. Some bits have a bronze oxide or gold coating to make them even more resistant to heat. Looking for the best drill bit is a task that depends on the kind of job you’re going to do. If you choose to invest in such sets, make sure the kit you purchase has the bit sizes you commonly use. The correct tip angle will eliminate “wandering” or “walking” concerns when the cobalt drill bit slides across a metal surface. If you are looking for the best cobalt drill bits, here is Bosch CO14B. It is also ideal for commercial and residential applications. You can drill through tough/hard metals easily. The best drill bits for hardened steel come in many specifications. This Cobalt Drill Bit is Typically Capable of Running Three to Five Times Faster.Despite the Higher Price,the Cost Per Hole When Using Cobalt Drill Bit Will be the Lowest,Since It Can Produce So Many More Holes. We work hard to bring the newest gear reviews to find the best one for you. Bosch Cobalt bit set So, it is stable, durable, and sharp drill bits. For instance, you need a drill bit with a larger tip angle when drilling through hard metal. For drilling aluminium, we recommend our cobalt stub drill bits. Enhanced M42 grade cobalt results in drill bits that reportedly last 10 times longer than standard cobalt bits. These drill bits have a Rockwell hardness of about 67 for enhanced durability and efficient cutting. IRWIN (3018002) M35 Cobalt Steel Drill Bit Set; 6. The only drawback is that this product comes with a cheaply constructed carry case. You can choose from brad point, split point, V point, fish point, and tapered point designs. Countersink and counterbore drill bits can be used interchangeably in some occasions, although they differ in their shape as well as in the shape and size of the holes they make. This drill bit set is ideal for anyone searching for tough cobalt drill bits that can bore into hard metal like cast iron, stainless steel, and titanium. Because it’s designed and made for maximum speed and long life. GearsMag.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. If you need drill bits that can last longer, choose the shorter ones. Check Price. As an Amazon Associate I earn from qualifying purchases. Irwin packed this kit with 29 drill bits made with heavy duty web construction and cobalt steel. These two features help to reduce the risk of the tool breaking, spinning, or twisting while in use. Durable and strong. Cobalt drill bits are drill bits which contain a percentage of cobalt. drill bit set is suitable for most brands on the market.reliable quality and considerate service. After analyzing the best cobalt drill bits, we felt that the number one choice for a customer looking to buy a cobalt drill bits will be Bosch CO2143 1/4 In. Sale Bestseller No. We Got Something For You! HSS drill bits, an acronym for high speed steel drill bits are extremely hardwearing and particularly well designed for drilling into metal surfaces, as they are much more resistant to the heat generated from the fast speed operation. It is a 29 piece set that has various bit sizes for different applications. Let me guide you through the key aspects to consider when searching for an ideal product. Non-walking drill tip provides fast and smooth drills on steel sheets, aluminum sheets, wood board, plastic board etc. The tools include 29 different jobber length drill bits all made from cobalt steel with a 135-degree split point meant to reduce clogging and produce … Here we have populated the best options available for you. None of the drill bits mentioned above can beat step bits when working on metals. They are made for maximum heat resistance and durability. Check Latest Price. DEWALT Titanium Drill Bit Set, 21-Piece (DW1342) 5. This German multinational technology company is renowned for producing some of the best power tools, household appliances, and automotive accessories in the market. The M135 Cobalt Alloy has 5% Cobalt in it. CO-Z 5pcs Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set with Aluminum Case. Its web design gives great durability and strength. This is the most preferable type of cobalt drill bit, which is used for variety of operations. Ans: We are big fans of all of the drill bit sets we’ve reviewed. So, you will get excellent support from this drill bit. If you need the best brand cobalt drill bits with high-performance that are crafted to last, this is a product you must consider. The length of a drill bit plays a critical role in dictating its overall longevity. There are more than a few prime reasons to invest in cobalt drill bits. There are n spin shanks. They are durable, highly versatile, and have higher heat resistance. The bits are especially suitable for wood and plastic drilling. Similarly, the M142 has 8% Cobalt. Here we have populated the best options available for you. Specialty drill bits can be best brad point drill bits, drill saws, glass & tiles, plug cutters, screw pilots, step drills, etc. They can resist breaking, spinning, and twisting, even when drilling into hard metals. Below are the types of cobalt drill bits on the basis of their tip style, length and shank style: 1. Check Cobalt bits Price and Availability Cobalt vs HSS drill bits – application HSS drill bits are good for drilling in materials such as plastic, wood, and mild steel. Top 10 Best Cobalt Drill Bits Review 1. List of The Best Cobalt Drill Bits in 2020; 10. There are n spin shanks. Manufacturers usually add between 5 and 7% cobalt, but this varies by brand. Irwin drill bits have an innovative geometry that helps to start the job faster. With this vital information, making a choice is going to be pretty simple for you. First, use a low-speed RPM and vertical drilling techniques when boring through hard metals. We Got Something For You! Compared to the standard M35 grade drill bits, these can last ten times longer. Everything about the drill bits will knock you off your socks. Cobalt M42 Drill Bit Set, #4 Hymnorq Metric M35 Cobalt Steel Heat Resistant Drill Bits, #5 Drill America M35 Cobalt Drill Bit Set, DWDCO Series. Adding cobalt to the base alloy makes them incredibly hard and durable. Avoid using them when you don’t need them to prolong their life for when you do. They have 135-degree split point tips that provide impressive penetration capacity. DEWALT (DWA1240) Cobalt Drill Bit Set; 3. All the bits come in a well-organized case for easy transport and storage. Dive in to learn more about their products. Please read continue to learn more about the various options of mp3 waterproff available. These powerful bits will chew through cast iron, aluminum, and even steel. Since the cobalt is blended into the steel, it doesn’t wear away like a titanium or black oxide coating. Irwin drill bits - Top pick, 2. CO-Z 5pcs Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set with Aluminum Case. If you’re looking for a drill bit set from … Best Metal Drill Bits: The War between HSS, Carbide, and Cobalt. Cobalt M42 Drill Bit Set, CO-Z 5pcs Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set with Aluminum Case. Their Metric M35 twist drill bits caught our attention because of all the good reviews the set has attracted. Here we have populated the best options available for you. No wobbling, zigzag, walking, and wandering of drill bits during operation. We went... Searching For The heavy bass bluetooth speaker? Set of 29 jobber length drill bits includes inch sizes 1/16" to 1/2" in 1/64" increments, Cobalt steel provides extended tool life compared to high-speed steel drill bits when drilling hard materials, Gold oxide finish lubricates the drill bit and provides wear resistance, Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging, Sizes 1/16 inch -1/2 inch in 1/64 inch increments, 135 Degree Split Point To Minimize Walk, 5% Cobalt For Higher Heat & Abrasion Resistance, Heavy Duty Web Construction For Strength & Durability. Best Cobalt Drill Bits Comparison and Review. Again, you get a full set of 29 bits that range from 1/16 to ½ inches, meaning that you can drill any hole in between. In this review, we explore the best cobalt drill bits. Hymnorq Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bits; 3. Twist bits also come in a range of sizes and shapes to make them a perfect match for various applications. You can use them to bore into stainless steel, Inconel and titanium. Metric M42 8% Cobalt Twist Drill Bits; 8. Fully ground, high performance cobalt steel drill bit, manufactured with 5% cobalt. The two most commom percentages are 5% (also known as M35 cobalt bits) and 8% (known as M42 cobalt bits) The more cobalt a drill bit contains the harder the metal you will be able to drill however, the increase in cobalt has a downside in that it makes the drill bit more brittle. The key aspects to consider when purchasing cobalt drill bits are fully ground with 5 % –8 %.... For an ideal product surfaces from unnecessary damage applications that need higher of... About who makes the best cobalt drill bits December 2020 Results are Based.... You off your socks choose the best options available for you cobalt metal drill bit Set with point. 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