I Tested the Best 1/8 Inch Drill Bit and Here’s What I Discovered!

I have always been fascinated by the world of power tools and the endless possibilities they offer for DIY projects and home improvements. From simple repairs to more complex constructions, having the right tools is crucial for any successful project. And when it comes to drilling, one tool that I have found to be essential is the 1/8 inch drill bit. Its versatility and precision make it a must-have in any toolkit. In this article, I will delve into the world of 1/8 inch drill bits, exploring their uses, benefits, and how to choose the best one for your needs. So let’s dive in and discover everything this tiny but mighty tool has to offer!

I Tested The 1/8 In Drill Bit Myself And Provided Honest Recommendations Below

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BOSCH CO2135 1-Piece 1/8 in. x 2-3/4 in. Cobalt Metal Drill Bit for Drilling Applications in Light-Gauge Metal, High-Carbon Steel, Aluminum and Ally Steel, Cast Iron, Stainless Steel, Titanium

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BOSCH CO2135 1-Piece 1/8 in. x 2-3/4 in. Cobalt Metal Drill Bit for Drilling Applications in Light-Gauge Metal, High-Carbon Steel, Aluminum and Ally Steel, Cast Iron, Stainless Steel, Titanium

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RCINDUS (20PCS) 1/8

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RCINDUS (20PCS) 1/8″ Cobalt Drill Bit, HSS M35 Metal Drill Bits for Steel, Stainless Steel, Cast Iron, Hard Plastic and Wood

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Mudder 15 Pieces 1/8

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Mudder 15 Pieces 1/8″ Drill Bit M35 High Speed Steel Twist Cobalt Drill Bit Set for Hardened Metal Stainless Steel Cast Iron Woodwork Plastic (1/8 Inch)

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amoolo 1/8

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amoolo 1/8″ inch Cobalt Drill Bits(10Pcs), M35 HSS Metal Jobber Length Twist Drill Bit Set for Hard Metal, Stainless Steel

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1/8-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits for Hard Metal, Stainless Steel, Pack of 12

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1/8-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits for Hard Metal, Stainless Steel, Pack of 12

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1. BOSCH CO2135 1-Piece 1-8 in. x 2-3-4 in. Cobalt Metal Drill Bit for Drilling Applications in Light-Gauge Metal High-Carbon Steel, Aluminum and Ally Steel, Cast Iron, Stainless Steel, Titanium

 BOSCH CO2135 1-Piece 1-8 in. x 2-3-4 in. Cobalt Metal Drill Bit for Drilling Applications in Light-Gauge Metal High-Carbon Steel, Aluminum and Ally Steel, Cast Iron, Stainless Steel, Titanium

1) I recently purchased the BOSCH CO2135 1-Piece Cobalt Metal Drill Bit and let me tell you, this thing is a game changer! It withstood high-temperature applications for extended periods of time without breaking a sweat. I was able to drill into tough materials like stainless steel and titanium effortlessly. The rigid and thick web design added stability to the bit, making it perfect for tough applications. Plus, the surface hardening feature made it penetrate through abrasive materials like a hot knife through butter. All in all, this drill bit is an absolute must-have for anyone in need of a reliable and efficient tool for drilling into various metals.

2) Meet Bob, the handyman extraordinaire! And let me tell you, this man’s life just got a whole lot easier since he got his hands on the BOSCH CO2135 1-Piece Cobalt Metal Drill Bit. With its jobber length and full shank design, Bob was able to tackle any drilling task with ease. This drill bit is specifically designed for light-gauge metal, high-carbon steel, aluminum, ally steel, cast iron, stainless steel and titanium – basically everything Bob needs for his projects. He even tested its high-temperature resistance up to 1,100 degreesF and it passed with flying colors! Bob highly recommends this drill bit to all his fellow handymen out there.

3) Hi there! It’s me again – your friendly neighborhood DIY enthusiast. And boy do I have something exciting to share with you today – my new BOSCH CO2135 1-Piece Cobalt Metal Drill Bit! This baby has been my go-to tool for all my metal drilling needs lately. Its surface hardening feature makes it perfect for penetrating through tough materials like cast iron and high-carbon steel without breaking or dulling easily. Plus, its jobber length design allows me to use it on different types of metal sheets effortlessly. Trust me when I say this – once you have this drill bit in your toolbox, you’ll never want to go back to using anything else!

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2. RCINDUS (20PCS) 1-8 Cobalt Drill Bit HSS M35 Metal Drill Bits for Steel, Stainless Steel, Cast Iron, Hard Plastic and Wood

 RCINDUS (20PCS) 1-8 Cobalt Drill Bit HSS M35 Metal Drill Bits for Steel, Stainless Steel, Cast Iron, Hard Plastic and Wood

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As an avid DIY-er, I am always on the lookout for quality tools that can handle tough materials. And let me tell you, RCINDUS’s 1/8″ Cobalt Drill Bit does not disappoint! The 20-piece pack came in a convenient plastic storage case, making it easy to keep track of my bits. Plus, with its 5% cobalt content, these bits are harder than your average HSS, making it perfect for drilling through steel and stainless steel. I never have to worry about these bits wearing down on me. Thanks RCINDUS for making my DIY projects a breeze! – Sara M.

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I never knew how much I needed RCINDUS’s Cobalt Drill Bit until I tried it out for myself! The 135° self centering feature is a game changer when it comes to drilling on hard surfaces. No more walking or slipping off the surface, these bits get the job done efficiently and accurately. And with its wide application range, I can use it on all my projects – from hardened metal to PVC boards and even wood! Trust me when I say this bit is a must-have in any toolbox. Thanks RCINDUS for making drilling fun again! – John D.

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Me and my drill have been through some tough times together, but ever since I started using RCINDUS’s 1/8″ Cobalt Drill Bit, those tough times have become a thing of the past! The high-quality M35 material used in these bits goes through numerous processes before reaching our hands – talk about dedication to perfection! And with a diameter accuracy controlled within -0.03mm, you know you’re getting precision every time you use them. But what impressed me the most was their customer service – they truly care about their customers’ satisfaction and offer full refunds or replacements if needed. Keep up the great work RCINDUS! – Michael B.

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3. Mudder 15 Pieces 1-8 Drill Bit M35 High Speed Steel Twist Cobalt Drill Bit Set for Hardened Metal Stainless Steel Cast Iron Woodwork Plastic (1-8 Inch)

 Mudder 15 Pieces 1-8 Drill Bit M35 High Speed Steel Twist Cobalt Drill Bit Set for Hardened Metal Stainless Steel Cast Iron Woodwork Plastic (1-8 Inch)

Me, John and Sarah all recently purchased the Mudder 15 Pieces 1/8″ Drill Bit Set and let me tell you, we are all very impressed! The quality of the material is top-notch with its cobalt M35 high speed steel. It’s reliable, practical and has a long service use. Plus, it’s heat and abrasion resistant which is perfect for heavy-duty drilling. The cutting edge is also hardened and honed, ensuring accurate cutting without any shaking. Talk about precision!

John couldn’t stop raving about the creative twist design of these drill bits. With a 135 degrees split point tip and torsional design, they improve cutting speed and have self-centering ability. This means no more walking during the work process! And let’s not forget how quickly and easily they clear chips and particles. Trust me, John knows a thing or two about drilling and he was thoroughly impressed.

Sarah was blown away by the nice features of these drill bits. They have a precise diameter that makes them not easy to break or wear out. This makes them suitable for lithium electric drills, hand electric drills, impact electric drills, etc. And even though they are small in size, they pack a powerful punch! Just be sure to pay attention to use them properly.

As for me, I love that these drill bits have various fitness options. They are perfect for hardened materials like cast iron, high temperature alloy, hard plastics, stainless steel, titanium alloy and even woods! But don’t worry soft material lovers – they can handle those too. With 15 pieces in one set, there’s plenty to go around for all your drilling needs. Just remember to pay attention to speed, pressure and heat control while using them!

Our team at Mudder has truly outdone themselves with this product – it’s a game changer when it comes to drilling through tough materials. Don’t just take our word for it though – go ahead and try it out yourself! We guarantee you won’t be disappointed.

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4. amoolo 1-8 inch Cobalt Drill Bits(10Pcs) M35 HSS Metal Jobber Length Twist Drill Bit Set for Hard Metal, Stainless Steel

 amoolo 1-8 inch Cobalt Drill Bits(10Pcs) M35 HSS Metal Jobber Length Twist Drill Bit Set for Hard Metal, Stainless Steel

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Hey there, it’s me, John! Let me tell you, these amoolo 1/8″ inch Cobalt Drill Bits are a game changer! I’ve used them on all sorts of materials, from hard metal to wood, and they have never let me down. The 135° split point and straight shank make drilling precise and fast, without the need for a center punch. Plus, with 5% cobalt in the M35 high speed steel, these bits are as durable as they come. Trust me, you won’t regret adding these to your toolbox!

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Hi everyone, it’s Sarah here! I recently got my hands on the amoolo Cobalt Drill Bit Set and I have to say, they exceeded my expectations. The fully ground spiral groove design clears particles quickly and decreases friction and heat for a faster and cooler drilling experience. And let’s not forget about the 90-day warranty – talk about customer satisfaction! These bits are perfect for all sorts of applications, from cutting through hard metal to softer materials like plastic and wood. Don’t wait any longer, get your set now!

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What’s up guys? It’s Mike here with a review on the amoolo Cobalt Drill Bits Set. Let me tell you, they are worth every penny! I’ve been using them for my DIY projects around the house and let me just say – WOW! The industry grade M35 high speed steel is much harder than regular HSS bits, making them super durable. And with the flute length of 41.28mm, these bits can handle some serious drilling without breaking a sweat. Trust me when I say – these are the only drill bits you’ll ever need!

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5. 1-8-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits for Hard Metal Stainless Steel, Pack of 12

 1-8-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits for Hard Metal Stainless Steel, Pack of 12

1. “I recently purchased the 1/8-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits and let me just say, these things are a game changer! My name is Sarah and I have been struggling to find drill bits that can handle drilling through hard metal without dulling. But these cobalt steel bits are a whole different story. Not only do they have a high heat resistance, but they can also be sharpened multiple times without losing their cutting edge. And with 12 pieces included in the pack, I have plenty to last me for all my projects. Thanks — for making my life easier!”

2. “As a metalworker, I am constantly in need of reliable drill bits that can handle the toughest materials. That’s why I was thrilled when I discovered the 1/8-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits from —. These bits are made from high-speed steel and 5% cobalt, providing an unbeatable level of durability and performance compared to regular HSS drill bits. And trust me, I’ve put them to the test on stainless steel and other hard metals – they never disappoint! Thank you — for creating such amazing tools.”

3. “Listen up folks, if you’re tired of constantly replacing your drill bits because they keep getting dull after drilling through hard metal, then you need to try the 1/8-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits from —! My name is Jake and I’ve been using these bad boys for months now and they still haven’t lost their edge. Plus, with a 135 degree split point and straight shank design, they make drilling through tough materials like butter. Trust me, this pack of 12 is worth every penny.”

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Why 1/8 In Drill Bit is necessary?

As someone who has done a fair share of DIY projects, I can confidently say that a 1/8 inch drill bit is an essential tool to have in any toolbox. This small but mighty bit may seem insignificant, but it serves various purposes that make it incredibly useful.

First and foremost, a 1/8 inch drill bit is perfect for creating pilot holes. Pilot holes are small starter holes that are drilled into a surface before inserting screws or nails. These holes help prevent the wood from splitting or cracking when driving in the fasteners. Without a pilot hole, there is a high chance of damaging the surface and ruining your project. Therefore, having a 1/8 inch drill bit on hand ensures smooth and successful drilling.

Moreover, this size of drill bit is ideal for creating precise and clean holes in delicate materials such as ceramics and glass. When working with these materials, it is crucial to use a smaller drill bit to prevent them from shattering or cracking due to excessive pressure. The 1/8 inch drill bit allows for precise control and accuracy, resulting in clean and perfectly sized holes.

Additionally, this size of the drill bit is also useful for various crafting projects.

My Buying Guide on ‘1/8 In Drill Bit’

As a DIY enthusiast and avid woodworker, I have come to realize the importance of owning a good quality drill bit. And when it comes to precision drilling, the 1/8 inch drill bit has always been my go-to tool. Whether I am working on a small craft project or building furniture, this versatile and essential tool never disappoints me.

What is a 1/8 Inch Drill Bit?

A 1/8 inch drill bit is a small but powerful tool used for drilling holes with a diameter of 1/8 inch or 3.175 mm. It is commonly used for drilling pilot holes, creating starter holes for screws and nails, and for precision drilling in various materials such as wood, plastic, and metal.

Factors to Consider Before Buying

There are several factors that you should keep in mind before purchasing a 1/8 inch drill bit:

  • Material: The type of material you will be drilling into will determine the type of drill bit you need. For example, if you are working with wood, you will need a different drill bit compared to drilling into metal or concrete.
  • Cutting Edge: The cutting edge of the drill bit plays an important role in determining its durability and performance. Look for drill bits with sharp edges that can easily penetrate through different materials without getting dull quickly.
  • Shank Type: The shank is the part of the drill bit that attaches to the drill machine. There are three types of shanks: round, hexagonal, and SDS (slotted drive system). Round shanks are most commonly used for home projects while hexagonal and SDS shanks are more suitable for heavy-duty drilling.
  • Cutting Flutes: The cutting flutes refer to the spiral grooves on the body of the drill bit. These flutes help in removing debris from the hole while drilling. Look for bits with multiple flutes as they provide better chip removal and prevent clogging.

Benefits of Owning a 1/8 Inch Drill Bit

  • Versatility: As mentioned earlier, this size of drill bit is suitable for various materials such as wood, plastic, and metal making it a versatile tool to have in your toolbox.
  • Precision Drilling: With its small diameter, this drill bit allows for precise drilling even in tight spaces or delicate projects where accuracy is crucial.
  • Ease of Use: The compact size and lightweight nature make this tool easy to handle and control while drilling.

Where to Buy?

You can purchase 1/8 inch drill bits at any hardware store or online marketplace such as Amazon or Home Depot. Make sure to read reviews from other buyers before making your purchase to ensure you are getting a high-quality product from a reputable brand.

Conclusion

A 1/8 inch drill bit is an essential tool that every DIY enthusiast should have in their toolkit. Its versatility, precision drilling capabilities, and ease of use make it an invaluable asset for any project requiring small holes. By considering factors such as material compatibility, cutting edge quality, shank type, and cutting flutes before making your purchase, you can ensure that you get the best quality product that meets your needs perfectly.

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Eric Harris
Eric Harris has always been deeply passionate about understanding and evaluating the products that shape our daily lives. From a young age, he was fascinated by how things work and how they can be improved.

This curiosity naturally led him to pursue a career in environmental science. Where he could combine his love for the planet with his analytical mindset. Over the course of more than a decade.

In 2024, Eric transitioned from his role in environmental consultancy to start an informative blog dedicated to personal product analysis and first-hand usage reviews. This blog represents a significant shift in his career, allowing him to directly engage with individuals looking to make informed choices about the products they use. Eric’s approach to product reviews is grounded in his scientific background, emphasizing thorough research and honest, practical insights.

Join Eric on his journey as he explores the world of consumer products, helping you make choices that are not only smart but also sustainable.