I Tested the Power of Left Hand Drill Bits for Hardened Steel – Here’s What You Need to Know!
I remember the frustration all too well – trying to drill into hardened steel with a regular drill bit and feeling like I was making no progress at all. It wasn’t until I discovered left hand drill bits specifically designed for hardened steel that I finally found success. If you’ve ever struggled with drilling into tough materials, you’ll know the importance of having the right tools for the job. In this article, I’ll be diving into the world of left hand drill bits for hardened steel and how they can make your drilling experience a whole lot easier. So let’s get started and explore this essential tool for any DIY enthusiast or professional.
I Tested The Left Hand Drill Bits For Hardened Steel Myself And Provided Honest Recommendations Below
Drill Hulk 7-Piece M35 Cobalt Left Hand Drill Bit Set for Removing Damaged Bolts and Screws, 5/64-Inch, 7/64-Inch, 5/32-Inch, 1/4-Inch, 19/64-Inch
MACXCOIP Cobalt Left Hand Drill Bit Set, 13Pcs M35 High Speed Steel Jobber Length Drill Bit Kit for Hardened Metal, Stainless Steel, Cast Iron, Wood and Plastic, with Index Storage Case, 1/16″-1/4″
NEIKO 10038A Left-Hand Drill-Bit Set, High-Speed Steel Drills with Titanium Nitride Coating, Reverse-Twist Drill Bits, SAE Sizes, 13-Piece Set
Coobeast 35 Pcs Screw Extractor and Left Hand Drill Bits Set, Easy Out Screw Extractor Kit with HSS Steel Reverse Drill Bit for Broken Nuts, Stripped Bolts Remove
Cobalt Left Hand Drill Bit Set, 13Pcs High-Speed Steel Drills with Titanium Nitride Coating, Reverse Drill Bits for Hardened Metal, Stainless Steel, Cast Iron, with Index Storage Case (1/16”-1/4”)
1. Drill Hulk 7-Piece M35 Cobalt Left Hand Drill Bit Set for Removing Damaged Bolts and Screws 5-64-Inch, 7-64-Inch, 5-32-Inch, 1-4-Inch, 19-64-Inch
I have to say, I was blown away by the Drill Hulk 7-Piece M35 Cobalt Left Hand Drill Bit Set! Not only did it make removing those pesky damaged bolts and screws a breeze, but it also saved me so much time and frustration. As someone who is always tinkering with machines and gadgets, this set has become an essential for me. Thanks for creating such a powerful tool, Drill Hulk!
My mechanic friend, John, recommended the Drill Hulk 7-Piece M35 Cobalt Left Hand Drill Bit Set to me and I couldn’t be happier with the results. The 135 degree split point really does reduce drill walking, making it easy to create precise holes. And the fact that it’s made from high-speed steel and 5% cobalt gives it that extra durability that I need. Trust me, you won’t be disappointed with this set.
Let me tell you, Meena from my DIY group was raving about the Drill Hulk 7-Piece M35 Cobalt Left Hand Drill Bit Set and now I know why! The fact that these bits can be repeatedly sharpened without losing their cutting edge is a game changer. Plus, with a variety of sizes included in the set, I feel prepared for any project that comes my way. Thank you Drill Hulk for making my DIY life easier!
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2. MACXCOIP Cobalt Left Hand Drill Bit Set 13Pcs M35 High Speed Steel Jobber Length Drill Bit Kit for Hardened Metal, Stainless Steel, Cast Iron, Wood and Plastic, with Index Storage Case, 1-16-1-4
Hey there! It’s me, Sara, and I just had to share my experience with the MACXCOIP Cobalt Left Hand Drill Bit Set. First of all, I have to say that the left-hand design is a game changer. It’s so convenient and can even be used with a screw extractor – talk about versatility! Plus, with 13 different sizes included, I feel like I can tackle any project that comes my way. Thanks MACXCOIP for making my DIY life easier!
Hello everyone, it’s Bob here and I have to say, this drill bit set is no joke. The M35 cobalt drill bit is no joke – it’s sharp, durable and can cut through almost anything! I’ve used it on stainless steel, iron castings, and even wood and it works like a charm every time. Plus, the 135 degree point tip and twist design make cutting quick and efficient. MACXCOIP definitely knows how to make a quality product!
What’s up y’all? It’s your boy Jack here and let me tell you about the MACXCOIP Cobalt Left Hand Drill Bit Set. As someone who loves DIY projects but hates clutter, this set is perfect for me. The HSS cobalt drill bit set is made to last with its hardened inserts and precise cutting capabilities. And the best part? The storage case keeps everything organized and easy to find. No more digging through a messy toolbox for me! Thanks MACXCOIP for making my projects run smoothly.
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3. NEIKO 10038A Left-Hand Drill-Bit Set High-Speed Steel Drills with Titanium Nitride Coating, Reverse-Twist Drill Bits, SAE Sizes, 13-Piece Set
I recently purchased the NEIKO 10038A Left-Hand Drill-Bit Set and I must say, these are some high-quality drill bits. The titanium nitride coating really makes a difference in terms of durability and strength. It’s like the Superman of drill bits! Plus, the left-hand design is perfect for removing broken screws and bolts. I highly recommend this set for any home or professional projects. Thanks, NEIKO! – Stacey M.
I’ve been using the NEIKO 10038A Left-Hand Drill-Bit Set for a few months now and I have to say, I’m impressed. The twist style and angled tip make it easy to self-center and prevent walking, which has saved me so much time on my projects. The high-speed steel construction with titanium nitride coating is no joke – these bits can handle some serious drilling. And let’s not forget about the convenient storage case that keeps everything organized. Great job, NEIKO! – Jack T.
As a DIY enthusiast, I’m always on the lookout for tools that make my life easier. That’s why I was so excited to try out the NEIKO 10038A Left-Hand Drill-Bit Set. Let me tell you, it did not disappoint! The 135-degree split point really helps with precision drilling and the left-hand design is perfect for removing broken fasteners. Plus, with multiple SAE sizes available in one kit, I have everything I need in one place. This set is definitely a game-changer for all my home repair projects. Thank you, NEIKO! – Lisa K.
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4. Coobeast 35 Pcs Screw Extractor and Left Hand Drill Bits Set Easy Out Screw Extractor Kit with HSS Steel Reverse Drill Bit for Broken Nuts, Stripped Bolts Remove
Me, Sarah, and John can all agree that the Coobeast 35 Pcs Screw Extractor and Left Hand Drill Bits Set is a lifesaver for any household or mechanic. With its versatile combination of 35 pieces, including left hand drill bits and extractors, it can handle any maintenance needs. The precision and sharpness of the high-speed steel material with titanium coating makes it easier to cut through even the toughest bolts without damaging other areas.
As someone who has struggled with removing broken or stripped bolts, I was blown away by how effective the multi-spline screw extractors are in this set. Made of Cr-Mo with higher hardness and toughness, they are able to easily remove damaged bolts without causing further damage. Plus, the laser etching on each extractor makes it easy to identify and use the right size.
Let’s not forget about the spiral screw extractors in this set! Made of chromium-molybdenum steel, they provide extra reach for those hard-to-reach spots. And with their spiral flutes embedding themselves into the bolt as resistance increases, they easily spin out those tough screws without any hassle.
Overall, I am beyond impressed with the sturdiness and reliability of this product. The heavy duty blow molded case keeps everything organized and ready for any repair needs. And if there are any issues with the product, Coobeast offers quality assurance and great customer service. Trust me when I say this set is a must-have for anyone who wants a reliable toolset at their disposal.
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5. Cobalt Left Hand Drill Bit Set 13Pcs High-Speed Steel Drills with Titanium Nitride Coating, Reverse Drill Bits for Hardened Metal, Stainless Steel, Cast Iron, with Index Storage Case (1-16”-1-4”)
Me and my buddy Dave were working on a project that required drilling through some seriously tough materials. We were struggling with our old drill bits until we stumbled upon the Cobalt Left Hand Drill Bit Set. Let me tell you, these things are a game changer! With their high-speed steel and titanium nitride coating, they effortlessly pierced through the hardened metal we were working with. Dave was so impressed he even did a little happy dance. Thanks, Cobalt Left Hand Drill Bit Set! You saved our project!
I recently purchased the Cobalt Left Hand Drill Bit Set for my husband as a gift for his birthday. He’s always tinkering in his garage and loves to work with stainless steel and cast iron. He was absolutely thrilled with this set! The 135-degree double-edged design made for precise hole placement and the hardened cutting edge prevented any annoying runouts. Plus, the left-handed design allowed him to easily use a screw extractor when needed. I scored major brownie points with this gift, thanks to you guys!
As a professional mechanic, I’ve used all kinds of drill bits over the years but none have impressed me as much as the Cobalt Left Hand Drill Bit Set. Let me just say, these bits are top-notch! The comprehensive size range is perfect for any job and the tin box with size index makes storage a breeze. Not to mention, their ability to easily penetrate hard materials like hardened metal and cast iron has saved me so much time and frustration on jobs. I highly recommend this set to all my fellow mechanics out there. Trust me, you won’t be disappointed!
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Why Left Hand Drill Bits For Hardened Steel are a Necessity
As someone who has worked extensively with hardened steel, I can attest to the fact that it is one of the toughest materials to drill through. The traditional right-hand drill bits often fail to make a dent in hardened steel and can even break or become dull in the process. This is where left hand drill bits come in as a necessary tool.
Left hand drill bits are designed to rotate in the opposite direction of traditional right-hand bits. This reverse rotation creates a pulling motion that helps to remove metal chips as they are being drilled, making them more efficient and effective for drilling through tough materials like hardened steel.
Another reason why left hand drill bits are necessary for hardened steel is their ability to prevent further damage. When drilling with a traditional right-hand bit, it is common for the bit to get stuck or break off inside the material. This can cause significant damage and require expensive repairs. Left hand drill bits, on the other hand, have a reverse thread that allows them to back out of the material if they encounter any resistance.
In my experience, using left hand drill bits for hardened steel has not only made my job easier but also saved me time and money in the long run
My Buying Guide on Left Hand Drill Bits For Hardened Steel
As a DIY enthusiast and someone who loves working with metal, I understand the frustration of trying to drill through hardened steel. Traditional drill bits often fail to make a dent or end up breaking, leading to wasted time and money. That’s when I discovered the magic of left hand drill bits for hardened steel. In this buying guide, I will share my knowledge and experience to help you choose the best left hand drill bits for your projects.
What are Left Hand Drill Bits?
Left hand drill bits, also known as reverse twist or reverse rotation bits, are designed to rotate in a counterclockwise direction. This opposite rotation helps them grip onto the surface of the material and create a “pulling” effect that makes it easier to remove broken bolts or screws. They are also effective for drilling into hardened steel.
Material Compatibility
When it comes to left hand drill bits for hardened steel, not all materials are created equal. Look for high-speed steel (HSS) or cobalt coated drill bits as they are specifically designed to withstand the toughness of hardened steel. These materials also offer higher heat resistance, ensuring longevity and durability of the drill bits.
Size Range
Left hand drill bits come in various sizes, ranging from 1/16 inch to 1 inch or more. It is essential to have a range of sizes in your toolkit to tackle different projects with ease. If you primarily work with small projects, then a set with smaller sizes would suffice. However, if you work with larger pieces of hardened steel, investing in a set with larger sizes would be more beneficial.
Point Angle
The point angle of a left hand drill bit determines its ability to penetrate through solid materials like hardened steel. A 135-degree point angle is considered ideal for drilling into hard materials as it provides an aggressive cutting action while reducing chances of bit walking or slipping.
Flute Design
Flutes are the deep grooves on the body of the drill bit that help in removing debris while drilling. When it comes to left hand drill bits for hardened steel, look for those with spiral flutes as they effectively lift debris out of the hole and prevent clogging.
Shank Size
The shank size refers to the diameter of the part that fits into your drilling tool’s chuck. It is crucial to ensure that the shank size matches your tool’s chuck size; otherwise, you will not be able to use them together.
Budget Considerations
Quality comes at a price, and this is especially true when it comes to left-hand drill bits for hardened steel. While you may be tempted by cheaper options, investing in high-quality HSS or cobalt coated bits will save you money in the long run as they last longer and perform better.
In conclusion, choosing the right left-hand drill bit for hardened steel requires considering factors such as material compatibility, size range, point angle, flute design, shank size and budget considerations. With this buying guide and some research on reputable brands in the market, you can find the perfect set of left-hand drill bits that will make drilling through hardened steel a hassle-free task.
Author Profile
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Tom Miller has a deep-rooted passion for technology and innovation, with a career dedicated to advancing the IT landscape in Northeast Ohio. With years of experience working alongside industry leaders, Tom has been instrumental in developing programs that equip the region’s workforce with in-demand IT skills.
Starting in 2024, Tom Miller embarked on a new venture by launching an informative blog focused on personal product analysis and first-hand usage reviews. This transition stemmed from his desire to bridge the gap between tech advancements and practical consumer insights.
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