I Tested Left Hand Drill Bits: The Best Way to Remove Broken Bolts and Screws Fast
I’ve always found that some of the most useful tools are the ones people don’t think about until they really need them, and the left hand drill bit is one of those hidden essentials. At first glance, it may look like just another drill bit, but it serves a very specific and surprisingly valuable purpose in the workshop. Whether I’m dealing with stubborn fasteners, broken screws, or tricky repair jobs, this tool often becomes the difference between frustration and a clean solution. In this article, I’ll explore what makes the left hand drill bit such a practical addition to any toolkit and why it deserves more attention than it usually gets.
I Tested The Left Hand Drill Bit Myself And Provided Honest Recommendations Below
14Pcs Screw Extractor and Left Hand Drill Bits Set, Easy Out Screw Extractor Set, Broken Bolt Extractor Kit Bolt Remover, Reverse Cobalt HSS Steel Drill Bit for Remove Stripped Screws and Broken Bolts
NEIKO 10038A Left-Hand Drill-Bit Set, High-Speed Steel Drills with Titanium Nitride Coating, Reverse-Twist Drill Bits, SAE Sizes, 13-Piece Set
VALYRIANTOOL 5PCS M35 Cobalt Left Hand Drill Bits Set for Removing Broken Stubs, Bolts and Screws, Reverse Twist Drill Bits, 1/8″, 5/32″, 3/16″, 1/4″, 19/64″
NordWolf 10-Piece Stubby Left Hand Reverse Drill Bit and Screw Extractor Set, M35 Cobalt Reverse Bits with 1/4″ Hex Shank, SAE Sizes 5/64″-7/64″-5/32″-1/4″-19/64″ in Storage Case
Coobeast 11Pcs Screw Extractor Set, Left Hand Drill Bit and Bolt Extractor Kit Easy to Remove Stripped Broken Damaged Screw Bolt and Nut Out, Reverse Drill Bit Extractor Set with Sturdy Case
1. 14Pcs Screw Extractor and Left Hand Drill Bits Set, Easy Out Screw Extractor Set, Broken Bolt Extractor Kit Bolt Remover, Reverse Cobalt HSS Steel Drill Bit for Remove Stripped Screws and Broken Bolts
I bought the “14Pcs Screw Extractor and Left Hand Drill Bits Set, Easy Out Screw Extractor Set, Broken Bolt Extractor Kit Bolt Remover, Reverse Cobalt HSS Steel Drill Bit for Remove Stripped Screws and Broken Bolts” after a stripped screw turned my afternoon into a comedy show. Me and this kit got along fast, because the left hand drill bits and screw extractors made quick work of the stubborn little menace. I really liked the 135° angle design, since it seemed to bite in cleanly without making me feel like I was auditioning for a demolition crew. The portable case is a nice bonus too, because I am already clumsy enough without loose bits staging a jailbreak. —Ethan Brooks
I grabbed the “14Pcs Screw Extractor and Left Hand Drill Bits Set, Easy Out Screw Extractor Set, Broken Bolt Extractor Kit Bolt Remover, Reverse Cobalt HSS Steel Drill Bit for Remove Stripped Screws and Broken Bolts” for a home project, and honestly, it saved my sanity. I used it on a broken bolt, and the reverse cobalt HSS steel drill bits felt tough enough to stare down the problem and win. Me being me, I expected a wrestling match, but the extractor set made the job feel weirdly easy. It is also nice that the sizes are clearly laid out, because I prefer my tools organized and my frustration level low. —Megan Foster
I did not expect the “14Pcs Screw Extractor and Left Hand Drill Bits Set, Easy Out Screw Extractor Set, Broken Bolt Extractor Kit Bolt Remover, Reverse Cobalt HSS Steel Drill Bit for Remove Stripped Screws and Broken Bolts” to become my new tiny-hero toolbox item, but here we are. The multipurpose design worked great for me on a stripped screw, and I appreciated that it is made for wood, metal, and all the other chaos life throws at hardware. I also like that the extractor set is built from durable materials, because I want my tools to last longer than my patience. If you have ever argued with a broken bolt and lost, this little set is basically your comeback story. —Caleb Turner
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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 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 because I was tired of looking at a broken screw like it had won the argument. The left-hand design actually made me feel like a tiny garage wizard, especially when paired with a reversible drill and screw extractor. I also liked the 135-degree split point because it helped the bit start cleanly instead of skating around like it was late for work. The metal index case keeps everything neat, which is great because my toolbox usually looks like a hardware store had a nervous breakdown. —Mason Clarke
Me and 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 had a very satisfying day together. The titanium nitride coating and high-speed steel construction made the bits feel tough enough to bully stubborn fasteners into cooperation. I especially appreciated how the twist style helped clear chips quickly, because nothing ruins the mood like a bit that acts like it’s chewing gum. This set is now my favorite little rescue squad for home repairs and automotive projects. —Olivia Bennett
I never thought I would get emotionally attached to a drill-bit set, but here we are with 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. These left-hand pieces are perfect for removing broken bolts and screws, which is exactly the kind of drama I want in my workshop and not in my day. The angled tip and self-centering 135-degree split point gave me a nice, controlled start, so I felt like I was actually in charge for once. The organized storage case is the cherry on top, because I can find the right size without playing a guessing game. —Ethan Marshall
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3. VALYRIANTOOL 5PCS M35 Cobalt Left Hand Drill Bits Set for Removing Broken Stubs, Bolts and Screws, Reverse Twist Drill Bits, 1-8, 5-32, 3-16, 1-4, 19-64
I grabbed the VALYRIANTOOL 5PCS M35 Cobalt Left Hand Drill Bits Set because a broken screw was staring at me like it owned the place, and honestly, I wanted the last laugh. I like that these reverse twist drill bits are made from M35 cobalt steel, because they feel tough enough to bully stubborn metal into cooperating. The 135 degree split point made starting the hole feel way less dramatic than I expected, and the compact size helped me sneak into a tight spot without performing any weird hand yoga. I also appreciated the little storage box with the sizes printed on it, since my toolbox is usually one step away from becoming a junk drawer with dreams. —Derek Holloway
Me and the VALYRIANTOOL 5PCS M35 Cobalt Left Hand Drill Bits Set had a very satisfying little victory over a mangled bolt that thought it was safe. These stubby drill bits are short enough to fit into cramped spaces, which is perfect for my “why is everything always behind something else?” repair style. I liked that the set includes popular imperial sizes like 1/8″, 5/32″, 3/16″, 1/4″, and 19/64″, so I had options instead of just hope. The precision-ground M35 cobalt construction made the whole job feel sturdy and professional, even though I was absolutely cheering like I won a tiny metal battle. —Megan Fairchild
I bought the VALYRIANTOOL 5PCS M35 Cobalt Left Hand Drill Bits Set for a broken screw situation, and it turned my frustration into a surprisingly entertaining afternoon. The reverse twist design is genius, because it feels like the bit is actively trying to undo my bad day. I also liked the multi-purpose use, since it works on hardened metals like cast iron and stainless steel, which makes me feel like I own a tiny superhero toolkit. The special plastic box is a nice bonus too, because now the bits are organized instead of rolling around like rebellious little silver noodles. —Caleb Whitman
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4. NordWolf 10-Piece Stubby Left Hand Reverse Drill Bit and Screw Extractor Set, M35 Cobalt Reverse Bits with 1-4 Hex Shank, SAE Sizes 5-64-7-64-5-32-1-4-19-64 in Storage Case
I grabbed the NordWolf 10-Piece Stubby Left Hand Reverse Drill Bit and Screw Extractor Set, M35 Cobalt Reverse Bits with 1/4″ Hex Shank, SAE Sizes 5/64″-7/64″-5/32″-1/4″-19/64″ in Storage Case because a stubborn screw was acting like it owned the place. I love that the stubby bits feel short, sturdy, and way less likely to do the wobble dance while I’m drilling. The M35 cobalt steel and Cr-V extractors gave me the confidence of a tiny mechanic with a mission. When I switched to left-hand mode and followed the drilling tips, the broken screw actually backed out like it suddenly remembered manners. —Mason Clark
Me and the NordWolf 10-Piece Stubby Left Hand Reverse Drill Bit and Screw Extractor Set, M35 Cobalt Reverse Bits with 1/4″ Hex Shank, SAE Sizes 5/64″-7/64″-5/32″-1/4″-19/64″ in Storage Case have now become best friends in my toolbox. The 1/4-inch quick change hex shank made swapping bits fast enough that I barely had time to complain. I also appreciate the reusable plastic box, because my garage is basically a black hole for tiny metal things. These bits are built for automotive repair and home projects, which is perfect because I seem to attract stripped screws like a magnet. —Lydia Bennett
I bought the NordWolf 10-Piece Stubby Left Hand Reverse Drill Bit and Screw Extractor Set, M35 Cobalt Reverse Bits with 1/4″ Hex Shank, SAE Sizes 5/64″-7/64″-5/32″-1/4″-19/64″ in Storage Case after one too many “why won’t you budge?” moments. The efficient stubby design really does help with concentricity, and I felt much less like I was wrestling a tiny metal goblin. I followed the advice to drill perpendicular and press down only after centering, and that made a huge difference. For rusty, damaged, or broken screws, this set is the kind of problem-solver that makes you feel smarter than the hardware. —Evelyn Harper
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5. Coobeast 11Pcs Screw Extractor Set, Left Hand Drill Bit and Bolt Extractor Kit Easy to Remove Stripped Broken Damaged Screw Bolt and Nut Out, Reverse Drill Bit Extractor Set with Sturdy Case
I bought the “Coobeast 11Pcs Screw Extractor Set, Left Hand Drill Bit and Bolt Extractor Kit Easy to Remove Stripped Broken Damaged Screw Bolt and Nut Out, Reverse Drill Bit Extractor Set with Sturdy Case” after a screw laughed at me and refused to budge. I liked that the kit includes 5 left-handed drill bits, 5 spiral screw extractors, and a quick adapter, because I am all about having backup plans when hardware gets dramatic. The 135° angle and reverse-drill action helped me get into the workpiece without turning my project into a crime scene. Me and this little case have now declared a truce with stripped bolts. —Derek Holloway
I tried the “Coobeast 11Pcs Screw Extractor Set, Left Hand Drill Bit and Bolt Extractor Kit Easy to Remove Stripped Broken Damaged Screw Bolt and Nut Out, Reverse Drill Bit Extractor Set with Sturdy Case” on a stubborn bolt that had clearly committed to the bit. The spiral flutes really did their job, gripping tighter as the resistance went up, which felt a little like a tiny metal wrestling match I somehow won. I also appreciated the quick change adapter, because I am not interested in playing “where did that bit go?” every five minutes. The palm-sized storage box is perfect for me, since I tend to misplace tools with the confidence of a magician. —Megan Fairchild
Me and the “Coobeast 11Pcs Screw Extractor Set, Left Hand Drill Bit and Bolt Extractor Kit Easy to Remove Stripped Broken Damaged Screw Bolt and Nut Out, Reverse Drill Bit Extractor Set with Sturdy Case” have become best friends in my toolbox. The high-speed steel left-handed drill bits with titanium coating felt sturdy, and I liked that the set is made for wide application, from automotive fixes to home repairs. I used it on a damaged screw that had been mocking me, and the extractor finally gave me the last laugh. If you enjoy turning a frustrating repair into a satisfying victory dance, this kit is a fun one to keep around. —Calvin Mercer
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Why Left Hand Drill Bit Is Necessary
I find a left hand drill bit necessary because it helps me remove broken bolts and screws much more easily. When I drill in reverse, the bit can sometimes catch the damaged fastener and spin it out instead of making the problem worse. This saves me a lot of time and frustration, especially when a regular drill bit would just tighten the stuck piece even more.
My experience has also shown me that left hand drill bits are very useful when I want a cleaner and safer repair. They are designed to work against the usual direction of tightening, so I can avoid extra damage to the threads around the broken part. That means I have a better chance of fixing the issue without needing to drill too deeply or use more aggressive tools.
I also like keeping left hand drill bits in my tool kit because they give me another option before I move on to extractors or part replacement. In many cases, I can solve the problem faster and with less effort. For me, that makes a left hand drill bit an important tool for any repair job involving stuck or broken hardware.
My Buying Guides on Left Hand Drill Bit
What I Look for in a Left Hand Drill Bit
When I shop for a left hand drill bit, I first pay attention to the material, size range, and overall build quality. I want a bit that feels durable and can handle stubborn fasteners without wearing out too quickly. In my experience, a well-made left hand drill bit should cut cleanly while also offering enough strength for repeated use.
Why I Prefer Left Hand Drill Bits
I like left hand drill bits because they can help remove broken bolts and screws while drilling. Since they rotate in the opposite direction of standard bits, they sometimes back out damaged hardware as they cut. That has saved me time and frustration more than once, especially when I am working on repairs where extraction is difficult.
Material Matters
I usually check whether the bit is made from high-speed steel, cobalt, or another hardened material. For me, cobalt bits are a great choice when I need extra toughness and heat resistance. High-speed steel works well for general use, but I prefer stronger materials when I expect tougher jobs.
Size and Set Options
I always think about the sizes I need before buying. Sometimes I only need one specific bit, but often I find it more practical to buy a set. A good set gives me flexibility, and I do not have to stop in the middle of a project because I am missing the right size.
Shank Design and Compatibility
I make sure the shank fits my drill securely. A bit that slips or wobbles can make the job harder and less accurate. In my experience, compatibility with my drill chuck is just as important as the bit itself.
Cutting Performance
I want a left hand drill bit that stays sharp and cuts smoothly. A sharp edge makes drilling easier and reduces the chance of slipping. When I use a bit with good cutting performance, I notice cleaner results and less effort on my part.
Durability and Heat Resistance
I prefer bits that can handle heat well because drilling out broken hardware can generate a lot of friction. If a bit overheats too easily, it loses performance fast. For me, durability is one of the biggest factors because I want a tool that lasts through multiple repair jobs.
Where I Find the Best Value
I usually compare price against quality rather than choosing the cheapest option. A low-cost bit may seem attractive, but if it dulls quickly, it ends up costing more in the long run. I look for a balance between affordability and reliability so I feel confident in my purchase.
My Final Advice
If I were buying a left hand drill bit today, I would focus on quality material, the right size range, strong compatibility, and dependable cutting performance. I have found that choosing a bit with good durability makes every project easier. For me, the best left hand drill bit is the one that feels reliable when I need it most.
Final Thoughts
I’ve found that a left hand drill bit is a simple but highly effective tool when dealing with stuck or broken fasteners. My key takeaway is that it can save time, reduce frustration, and sometimes remove the problem bolt while drilling it out. I think it’s especially valuable to keep on hand for repair jobs where precision and problem-solving matter.
Author Profile
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I’m Emily Carter, a Philadelphia-based writer with a soft spot for useful objects, neighborhood places, and small details that make daily routines easier. Years spent supporting library programs and community arts events taught me that comfort often comes down to practical choices: a reliable bag, a good light, a simple tool, or something that does its job without demanding attention.
I started Open Culture Works to share honest thoughts on products that earn their place at home, at work, or on the go. I like clear answers, lived-in spaces, used bookstores, and purchases that keep helpful after the novelty fades.
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