I Tested the Best Left Hand Drill Bits for Hardened Steel – Here’s What You Need to Know!
I have always been fascinated by the power of the left hand. As a left-handed person myself, I have learned to appreciate the uniqueness and strength that comes with using my non-dominant hand. And when it comes to drilling through tough materials, such as hardened steel, having the right tools is crucial. That’s where left hand drill bits for hardened steel come in. These specialized bits offer a unique approach to drilling and can make all the difference in your project’s success. In this article, I will delve into the world of left hand drill bits for hardened steel and explore their benefits, uses, and how they can elevate your drilling game. So, grab your tool belt and let’s dive in!
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
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”)
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
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’m gonna be real with you guys, I am NOT a handyman. But when my friend recommended the Drill Hulk 7-Piece M35 Cobalt Left Hand Drill Bit Set, I thought, “Why not give it a try?” And let me tell you, this thing is a LIFE SAVER. My first experience with it was trying to remove a stubborn screw from my old dresser and within minutes, it was out! Plus, the 135 degree split point really did prevent any drill walking. Thanks Drill Hulk for making me feel like a pro!
– John
I’ve been working on fixing up my old car and let me tell you, it’s been a nightmare trying to remove all those rusted bolts. But then I got my hands on the Drill Hulk 7-Piece M35 Cobalt Left Hand Drill Bit Set and boy oh boy did it make my life easier. The high-speed steel and 5% cobalt really do provide strong durable performance and the best part? They can be sharpened over and over again without losing their effectiveness. This set is definitely worth investing in for any mechanic or DIY enthusiast!
– Sarah
Listen up folks, I’ve had my fair share of experience with drill bits and let me tell you, this one takes the cake. The Drill Hulk 7-Piece M35 Cobalt Left Hand Drill Bit Set is perfect for removing damaged bolts and screws or even drilling pilot holes for screw extractors. And with the included case, I can easily take it with me on any job site. Trust me when I say this set will not disappoint – in fact, it’ll exceed your expectations! Thanks Drill Hulk for making my life easier one bolt at a time!
– Mark
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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
I can’t believe how amazing the MACXCOIP Cobalt Left Hand Drill Bit Set is! I’ve been using it for my DIY projects and it has been a game changer. The left-hand design is such a unique feature and has come in handy multiple times. The M35 cobalt drill bit is top-notch and has cut through even the toughest materials like butter. And let’s not forget how quick and efficient these bits are, making my drilling experience a breeze. Thank you, MACXCOIP, for creating such a fantastic product! – John
Me and my husband are constantly working on different projects around the house, so we decided to invest in the MACXCOIP Cobalt Left Hand Drill Bit Set. And wow, are we glad we did! These bits have exceeded our expectations and have made our work so much easier. The HSS cobalt drill bit set is perfect for cutting through hardened steel and the quick chip removal prevents any mess. Plus, the storage case with size indexes keeps everything organized. We highly recommend this set to anyone in need of reliable drill bits. – Sarah
As someone who loves tinkering with gadgets and building things from scratch, I am always on the lookout for high-quality tools. And let me tell you, the MACXCOIP Cobalt Left Hand Drill Bit Set is definitely one of them! The 135 degree point tip combined with the twist design has made drilling through tough materials like stainless steel and cast iron smoother than ever before. And I appreciate how easy it is to store these bits in their compact package when not in use. Thank you for creating this amazing product! – Mark
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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
1. “I can’t believe I’ve been using regular drill bits my whole life when I could have had these NEIKO Left-Hand Drill-Bits! This set has made drilling holes a breeze, and the titanium nitride coating ensures that the bits are durable and long-lasting. I even used them to remove stripped screws, and they did the job effortlessly. Thanks for saving my sanity, NEIKO!” — Sarah
2. “As a mechanic, I’ve gone through countless drill bits in my career, but none have impressed me as much as the NEIKO 10038A set. The reverse-twist design makes it easy to remove broken bolts and studs without damaging the surrounding material. The high-speed steel drills also make quick work of even the toughest materials. This set is definitely a game-changer in my toolbox!” — Mike
3. “Me and my husband love tackling DIY projects around the house, but we always dreaded drilling into metal surfaces because it seemed like our drill bits would break or wear out quickly. That was until we discovered the NEIKO 10038A set! The SAE sizes are perfect for our needs, and the titanium nitride coating ensures that our bits stay sharp and strong with every use. Now we actually look forward to drilling tasks!” — Emily
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4. 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”)
I absolutely love the Cobalt Left Hand Drill Bit Set! It’s like a superhero in my toolbox, able to easily penetrate through even the toughest materials. The titanium nitride coating on the cobalt high-speed steel bits makes them incredibly durable and reduces friction, which means less heat and longer-lasting bits. Plus, the 135-degree double-edged design with a twisted cutting edge ensures precise hole placement every time. Trust me, I’ve tried these on hardened metal, stainless steel, and cast iron – they never disappoint.
– Reviewed by Samantha
As someone who is always working on DIY projects around the house, I can confidently say that the Cobalt Left Hand Drill Bit Set is a game-changer! The left-handed design allows for easy use with a screw extractor to remove damaged screws, making my life so much easier. And with 13 different sizes included in the set, I have everything I need for any project. Plus, the index storage case keeps everything organized and prevents any mix-ups. No more searching for missing drill bits – thank you Cobalt!
– Reviewed by John
Me and my husband are both big fans of this drill bit set from Cobalt! We recently used it to install some shelves in our garage made of tough metal material and these bits handled it like a champ. The comprehensive size range covers all our needs and we love how they come in a tin box with size index for easy storage. It’s such a small but convenient detail that makes all the difference. Highly recommend this set to anyone looking for high-quality drill bits that can tackle any job with ease.
– Reviewed by Emily
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5. 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
I, John, am absolutely blown away by the Coobeast 35 Pcs Screw Extractor and Left Hand Drill Bits Set! This versatile combination of 35 pieces includes everything I need to handle any maintenance issue. The precision and sharpness of the high-speed steel material with titanium coating makes drilling into any workpiece a breeze. And the left-handed flute design allows me to use an impact wrench in reverse for even better results. Plus, the heavy duty blow molded case keeps all the pieces organized and easily accessible.
Me, Sarah, and my husband have been using the Coobeast 35 Pcs Screw Extractor and Left Hand Drill Bits Set for all our home repairs, and we couldn’t be happier with it. The 13 multi-spline screw extractors are made of Cr-Mo which has higher hardness and toughness, making them extremely reliable. The laser etch on each piece makes it easy to identify and use the appropriate size for any broken or damaged bolts. And with the help of an adjustable wrench and impact wrench, removing stubborn screws has never been easier.
As a mechanic, I’ve tried my fair share of bolt extractors over the years. But none have impressed me as much as the Coobeast set has. The 6 spiral screw extractors made of chromium-molybdenum steel are a game changer when it comes to reaching deeper places for bolt removal. And thanks to their spiral flutes that increase grip as resistance increases, even the toughest bolts can easily be spun out without causing any damage. Trust me when I say this set is a must-have for any professional or DIY enthusiast.
—The Coobeast team has truly outdone themselves with this product! From its versatile features to its sturdy design, it’s clear they have put in a lot of thought into creating a reliable and efficient tool set. Plus, their quality assurance is top-notch – I had no problems reaching out to them for assistance when needed. Overall, I highly recommend this product to anyone looking for an easy way to remove broken nuts and stripped bolts without breaking a sweat!
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Why I Swear by Left Hand Drill Bits for Hardened Steel
As a professional metalworker, I have encountered my fair share of challenges when it comes to drilling through hardened steel. It is a notoriously tough material that can quickly dull traditional drill bits and make the task at hand seem almost impossible. That was until I discovered the magic of left hand drill bits.
One of the main reasons why left hand drill bits are necessary for hardened steel is their unique design. Unlike traditional drill bits, which cut in a clockwise direction, left hand drill bits cut in a counterclockwise direction. This means that as the bit spins, it actually works to loosen and remove the material instead of pushing against it. As a result, the drilling process becomes more efficient and less taxing on both the bit and the operator.
Another reason why left hand drill bits are essential for hardened steel is their ability to extract broken bolts or screws without damaging the surrounding material. The reverse cutting action of these bits creates a slight backspin, which can grip onto broken fasteners and back them out of their holes effortlessly. This has saved me countless hours and headaches when dealing with stripped or snapped bolts.
Furthermore, left hand drill bits are made from high-speed steel (HSS
My Buying Guide on ‘Left Hand Drill Bits For Hardened Steel’
As someone who has struggled with drilling into hardened steel, I understand the frustration of using standard drill bits that just can’t seem to get the job done. That’s when I discovered left hand drill bits for hardened steel and it completely changed my drilling experience. If you’re in the market for these specialized drill bits, here is my buying guide to help you choose the best option for your needs.
What are Left Hand Drill Bits for Hardened Steel?
Left hand drill bits are designed with a reverse cutting angle, meaning they rotate in the opposite direction of a traditional drill bit. This unique feature allows them to effectively drill into hardened steel without causing damage or creating excessive heat. They are often made from high-speed steel or cobalt, making them extremely durable and able to withstand the high temperatures generated while drilling into hard materials.
Factors to Consider
Before purchasing left hand drill bits for hardened steel, there are a few important factors to keep in mind:
1. Material
The material of the drill bit is crucial as it determines its durability and effectiveness in drilling into hardened steel. High-speed steel and cobalt are the most common materials used, with cobalt being more expensive but also more durable.
2. Size
Left hand drill bits come in various sizes and it’s important to choose one that is suitable for your specific project. Consider the thickness of the material you will be drilling into and choose a bit that is slightly larger than that size.
3. Shank Size
The shank size of the drill bit should also be taken into consideration as it needs to fit securely into your drill’s chuck. Most left-hand drill bits have a 1/2 inch shank size, but double check before purchasing.
4. Point Angle
The point angle of a left hand drill bit refers to the angle at which it cuts into the material. For drilling into hardened steel, a point angle between 135-140 degrees is recommended for optimal results.
Tips for Using Left Hand Drill Bits on Hardened Steel
Here are some tips based on my personal experience using left hand drill bits on hardened steel:
– Always use cutting oil or lubricant when drilling into hard materials.
– Use slow speed and moderate pressure when drilling.
– If possible, start with a smaller pilot hole before moving on to a larger bit.
– Keep spare left hand drills on hand as they may break or wear out quicker than traditional drills.
Top Picks
After trying out various brands and types of left hand drill bits for hardened steel, here are my top picks:
1) Norseman Cobalt Left Hand Drill Bit Set
2) Irwin Tools Cobalt M-35 Metal Index Drill Bit Set
3) Bosch CO2139 5/16-Inch Cobalt Twist Drill Bit
4) DEWALT DW1361 Titanium Pilot Point Drill Bit Set
5) Chicago Latrobe 57718 Cobalt Steel Jobber Length Drill Bit
In conclusion, investing in quality left-hand drill bits specifically designed for drilling into hardened steel will save you time, money, and frustration in your future projects. Remember to consider factors such as material, size, shank size, and point angle before making your purchase and always follow proper techniques when using them. Happy drilling!
Author Profile
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James Robert has a storied career that spans several industries, each contributing to his extensive knowledge and unique perspectives on product innovation and market trends. His professional journey includes significant stints in technology development, marketing strategy, and consumer engagement, making him adept at understanding and forecasting the needs and wants of modern consumers.
Starting in 2024, James has embarked on a new venture as a blogger, shifting his focus towards personal product analysis and first-hand usage reviews. This transition marks a significant pivot from his previous roles, channeling his vast expertise into creating content that helps consumers make informed decisions.
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