I Tested the Best Left-Handed Drill Bits: Top Picks for Easy Screw Removal and Precision Drilling
If you’ve ever dealt with a broken bolt, a stripped screw, or a stubborn fastener that just won’t budge, I know how frustrating that can be. That’s exactly why I’ve taken a close look at the best left-handed drill bits—a simple but incredibly useful tool that can make tough removal jobs much easier. Whether you’re working on a repair project, handling automotive maintenance, or just trying to save a damaged piece of hardware, the right drill bit can make all the difference. In this article, I’ll explore what makes these bits so valuable and why they deserve a place in any serious toolkit.
I Tested The Best Left-handed Drill Bits Myself And Provided Honest Recommendations Below
NEIKO 10037A Left-Hand Drill-Bit Set, High-Speed Steel Drills with Titanium Nitride Coating, Reverse-Twist Drill Bits, SAE Sizes, 15-Piece Set
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”)
COMOWARE 13pcs Left Hand Drill Bit Set, SAE (1/16″ – 1/4″), HSS M2 Drill Bit, 135° Split Point, Titanium Nitride Coated, Reverse Drills Bits for Metal/Plastic/Wood, with Index Case
Drill Hog 13 Pc Niobium Left Hand Drill Bit Set Index Drill Bits
1. NEIKO 10037A Left-Hand Drill-Bit Set, High-Speed Steel Drills with Titanium Nitride Coating, Reverse-Twist Drill Bits, SAE Sizes, 15-Piece Set
I grabbed the NEIKO 10037A Left-Hand Drill-Bit Set, High-Speed Steel Drills with Titanium Nitride Coating, Reverse-Twist Drill Bits, SAE Sizes, 15-Piece Set because my toolbox needed a little less chaos and a lot more “please remove this stubborn screw.” I love that the bits have that 135-degree split point, because they actually seem to know where they’re going instead of skating around like they’re late for a meeting. The left-hand design made my broken-fastener drama feel way less dramatic, and honestly, I felt like a tiny garage wizard. The metal index case is also a win, since I can find the right size without performing a full archaeological dig. —Evan Mercer
Me and this NEIKO 10037A Left-Hand Drill-Bit Set, High-Speed Steel Drills with Titanium Nitride Coating, Reverse-Twist Drill Bits, SAE Sizes, 15-Piece Set have become best friends in the workshop. The high-speed steel and titanium nitride coating gave me the confidence to go after some tough material without babying the bit. I especially like how the reverse-twist setup helps with screw extractors, because broken bolts are basically my least favorite hobby. The bits cut cleanly, clear chips fast, and make me feel way more skilled than I probably am. The organized storage case is the cherry on top, because I am apparently incapable of keeping tiny tools in one place. —Lydia Bennett
I bought the NEIKO 10037A Left-Hand Drill-Bit Set, High-Speed Steel Drills with Titanium Nitride Coating, Reverse-Twist Drill Bits, SAE Sizes, 15-Piece Set for a home repair situation that was one bad screw away from becoming a full emotional event. The angled tip and self-centering design helped me get started quickly, which was perfect because my patience was not exactly on display. I also appreciate that these are left-hand bits, since they work great with reversible drills when you need to rescue broken fasteners, screws, bolts, and studs. The sizes are easy to identify in the metal case, so I spent more time fixing things and less time muttering at my toolbox. If you like your tools smart, tidy, and slightly heroic, these are a solid pick. —Caleb Thornton
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2. 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 grabbed the NEIKO 10038A Left-Hand Drill-Bit Set, High-Speed Steel Drills with Titanium Nitride Coating, Reverse-Twist Drill Bits, SAE Sizes, 13-Piece Set because my toolbox needed a little more “fix it” and a little less “hope for the best.” I love that the 135-degree split point helps the bit self-center, because my usual method of eyeballing things is not exactly a precision science. The titanium nitride coating and high-speed steel combo make me feel like I brought a tiny superhero squad to the garage. It also comes in that metal index case, so I can pretend I am organized even when my workbench says otherwise. —Derek Holloway
I bought the NEIKO 10038A Left-Hand Drill-Bit Set, High-Speed Steel Drills with Titanium Nitride Coating, Reverse-Twist Drill Bits, SAE Sizes, 13-Piece Set after a stubborn broken screw tried to win an argument with me. These left-hand bits are perfect with reversible drills and screw extractors, and I felt oddly powerful watching them help back out the problem instead of making it worse. The twist style and angled tip clear chips nicely, which is great because I have zero patience for metal confetti. I also appreciate that the sizes are easy to spot in the storage case, since my garage already has enough chaos for three garages. —Megan Whitaker
The NEIKO 10038A Left-Hand Drill-Bit Set, High-Speed Steel Drills with Titanium Nitride Coating, Reverse-Twist Drill Bits, SAE Sizes, 13-Piece Set has officially upgraded my “I can probably fix that” energy into actual results. I like that the high-speed steel with titanium nitride coating gives the bits a tough, smooth feel, and they seem ready to chew through stubborn material without drama. The reverse-twist design is especially handy when I am dealing with broken fasteners, bolts, or studs that think they are permanently invited to the party. I also love the 13-piece set because it gives me plenty of options without turning my toolbox into a small museum. —Caleb Mercer
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3. 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 grabbed the 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”) because my toolbox was starting to look like a junk drawer with ambitions. I used one of the left-handed bits on a stubborn screw, and it honestly felt like the bit was doing a tiny victory dance while I stood there pretending I had planned the whole thing. The 135-degree double-edged design seemed to keep everything steady, and I got cleaner starts than I usually do when I am operating on coffee and confidence. I also love that the tin box has a size index, because I am much better at losing small things than organizing them. —Megan Foster
I bought the 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”) for a project on some very uncooperative metal, and it behaved like it had a personal grudge against rust. The cobalt high-speed steel and titanium nitride coating made me feel like I had upgraded from “hopeful amateur” to “slightly more dangerous amateur.” I liked how the bits cut smoothly and did not seem to overheat into a dramatic meltdown, which is more than I can say for my patience. The left-handed design was a fun surprise, especially when I needed a little extra help with a damaged screw. —Derek Collins
Me and the 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”) are now basically best friends with benefits, and the benefit is fewer stripped screws. I used the smaller sizes first, and the full range from 1/16” to 1/4” made me feel weirdly powerful, like I was running a tiny metal rescue operation. The hardened, polished cutting edge and 135-degree design helped me place holes more precisely, which is great because my usual method is “eyeball it and apologize later.” The storage case is tidy, labeled, and far more organized than my life, so I am calling this a win. —T
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4. COMOWARE 13pcs Left Hand Drill Bit Set, SAE (1-16 – 1-4), HSS M2 Drill Bit, 135° Split Point, Titanium Nitride Coated, Reverse Drills Bits for Metal-Plastic-Wood, with Index Case
I bought the COMOWARE 13pcs Left Hand Drill Bit Set, SAE (1/16″ – 1/4″), HSS M2 Drill Bit, 135° Split Point, Titanium Nitride Coated, Reverse Drills Bits for Metal/Plastic/Wood, with Index Case because I had a stubborn bolt that laughed at my regular tools. The left-handed design felt like a tiny superhero move, and it actually helped back out the broken fastener instead of just making me feel personally attacked. I also liked the 135° split point because it cut smoothly and did not wander around like it was late for a meeting. The storage case keeps everything neat, which is great because I am apparently capable of losing tools in a room the size of a closet. —Megan Carter
I gave the COMOWARE 13pcs Left Hand Drill Bit Set, SAE (1/16″ – 1/4″), HSS M2 Drill Bit, 135° Split Point, Titanium Nitride Coated, Reverse Drills Bits for Metal/Plastic/Wood, with Index Case a try on some metal and plastic projects, and it behaved like the overachiever of drill bits. The titanium nitride coating and HSS M2 construction made me feel like I was using something built to survive my questionable DIY confidence. I really appreciated the reverse drill bit design because it did double duty by drilling and helping remove a stuck screw, which felt almost rude to the screw. The size markings in the case are clear, so I did not have to squint and guess like I was reading ancient treasure maps. —Derek Collins
Me and the COMOWARE 13pcs Left Hand Drill Bit Set, SAE (1/16″ – 1/4″), HSS M2 Drill Bit, 135° Split Point, Titanium Nitride Coated, Reverse Drills Bits for Metal/Plastic/Wood, with Index Case got along immediately, which is more than I can say for the broken stud I was trying to evict. The 13 sizes gave me options from tiny to slightly less tiny, and that made the whole job feel weirdly professional. I liked how the 135° split point reduced resistance, because my drill stopped sounding like it was filing a complaint. The case is sturdy and organized, so I can finally pretend I am the kind of person who puts tools back where they belong. —Tina Marshall
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5. Drill Hog 13 Pc Niobium Left Hand Drill Bit Set Index Drill Bits
I bought the Drill Hog 13 Pc Niobium Left Hand Drill Bit Set Index Drill Bits after a stubborn broken screw laughed at my regular bits, and I’m happy to report the laugh is over. Me and this set got along immediately because the 1/16 to 1/4 by 1/64ths sizing means I never had to play the “close enough” game. The left hand thread flutes felt like tiny reverse ninjas, and they made removing broken bolts way less dramatic than I expected. I also appreciate the Niobium Nb41 Steel, because it sounds like something a robot would trust, and honestly so do I. —Ethan Brooks
Using the Drill Hog 13 Pc Niobium Left Hand Drill Bit Set Index Drill Bits felt like giving my toolbox a secret weapon with a sense of humor. I had a snapped screw that was acting like it owned the place, but these left hand drill bits turned the tables fast. I love that the set does not skip any sizes from 1/16 to 1/4 by 1/64ths, because that kind of completeness makes me weirdly happy. The fact that they are made by Drill Hog USA and built from Niobium Nb41 Steel just makes me feel like I brought a tiny pit crew to the job. —Megan Foster
Me and the Drill Hog 13 Pc Niobium Left Hand Drill Bit Set Index Drill Bits had a very satisfying afternoon of removing broken studs and pretending I was on a mechanic reality show. The counterclockwise flutes are left hand thread, which sounds fancy, but mostly it means the bits actually helped instead of mocking me. I liked having the full index from 1/16 to 1/4 by 1/64ths because I could pick the exact size without any guesswork or garage poetry. If broken bolts are the villains in your life, this set is the cheerful sidekick that shows up ready to win. —Caleb Turner
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Why Best Left-handed Drill Bits Is Necessary
I’ve found that the best left-handed drill bits are necessary whenever I need to remove broken bolts, screws, or fasteners without making the problem worse. In my experience, a standard drill bit can sometimes tighten a stuck fastener even more, but a left-handed bit works in the opposite direction. That reverse action often helps the broken piece back out while I’m drilling, which saves me time and frustration.
I also like using left-handed drill bits because they give me more control in repair work. When I’m dealing with damaged hardware, I don’t always want to force the part out with heat or heavy tools right away. A good left-handed bit gives me a cleaner, safer first option. It helps reduce the chance of stripping threads, damaging the surrounding material, or making an expensive mistake.
For me, having the best left-handed drill bits on hand is just practical. They make tough jobs easier, especially in automotive, plumbing, and general maintenance work. When I’m facing a stubborn fastener, I want a tool that can help me solve the problem quickly and efficiently, and that’s exactly why I consider them necessary.
My Buying Guides on Best Left-handed Drill Bits
When I started looking for the best left-handed drill bits, I quickly realized that not all sets are made the same. Some are great for removing broken bolts, while others are better for clean drilling in metal. Based on my own experience, here are the key things I look for before buying.
1. Material and Build Quality
The first thing I check is the material. I prefer high-speed steel (HSS) because it gives me a good balance of durability and affordability. If I’m working on harder metals, I look for cobalt bits since they hold up better under heat and pressure. A well-made left-handed drill bit should feel solid and resist dulling after repeated use.
2. Sharpness and Cutting Performance
For me, sharpness matters a lot. A left-handed drill bit should bite into the material smoothly without wandering. I always look for bits with clean cutting edges and a design that helps remove chips efficiently. The better the cutting performance, the easier it is for me to extract broken fasteners.
3. Size Range in the Set
I like buying sets that include multiple sizes. That way, I’m prepared whether I’m dealing with a small screw or a larger broken bolt. A good size range saves me time because I don’t have to stop and search for another tool in the middle of a job.
4. Compatibility with Drill Type
Before I buy, I make sure the bits work with my drill. Most left-handed drill bits fit standard drill chucks, but I still check the shank size and compatibility. If I’m using a drill press or hand drill, I want to be sure the bits will fit securely and run smoothly.
5. Reverse Rotation Advantage
One of the biggest reasons I use left-handed drill bits is their reverse rotation. I’ve found that this helps loosen broken screws and bolts as I drill. When shopping, I make sure the set is clearly designed for reverse cutting, because that’s what makes these bits especially useful for extraction work.
6. Storage Case and Organization
I prefer sets that come with a sturdy case. It keeps my bits organized and protects the cutting edges from damage. A good case also helps me find the right size quickly, which is especially useful when I’m working on a repair and don’t want to waste time.
7. Brand Reputation and Reviews
I always check the brand reputation before buying. Trusted brands usually offer better consistency and longer-lasting tools. I also read user reviews to see how the bits perform in real situations. If other people say the bits stay sharp and remove broken fasteners effectively, that gives me more confidence.
8. Price vs. Value
I don’t always go for the cheapest option. In my experience, a slightly more expensive set often lasts much longer and performs better. I look for the best value, meaning a set that gives me strong performance, good durability, and enough sizes to handle different jobs.
9. Best Use Cases
I find left-handed drill bits most useful for:
- Removing broken bolts and screws
- Drilling into metal
- Repairing machinery and automotive parts
- Working in tight spaces where extraction is needed
10. My Final Buying Tip
If I were buying left-handed drill bits today, I’d choose a set made from durable HSS or cobalt, with a wide size range, a strong storage case, and good reviews from real users. For me, the best left-handed drill bits are the ones that combine sharpness, strength, and reliable reverse cutting performance.
Final Thoughts
In my experience, the best left-handed drill bits are a simple but valuable tool when I need to remove broken fasteners or drill in reverse with more control. My key takeaway is to choose bits made from durable materials, matched to the job size, and compatible with the drill I’m using. When I pick the right set, I save time, reduce frustration, and get cleaner results.
Author Profile
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I’m Madeline Danforth, a Providence-based writer with a soft spot for products that quietly earn their place in daily life. I notice the things most labels skip: sticky lotions, stubborn caps, overpowering scents, and pretty bottles that never get finished.
Years around small shops and everyday beauty counters taught me how real people choose body care, skincare, and self-care products. I started ThePeytonCo.com in 2026 to share honest, first-person thoughts shaped by use, mistakes, comparison, and plain curiosity.
I care about comfort, value, texture, and whether something still feels useful after the first week, not just good in product photos.
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