I Tested Left Hand Drill Bits: The Best Way to Remove Broken Bolts Fast
I’ve always found that the smallest tools can make the biggest difference, and the left hand drill bit is a perfect example. At first glance, it may seem like just another specialty bit, but it plays a surprisingly important role when a standard drill bit simply isn’t enough. Whether I’m dealing with a stubborn fastener, a broken screw, or a tricky repair that needs a smarter approach, this tool stands out for its ability to solve problems in a way that feels both practical and efficient. In this article, I’ll introduce what makes the left hand drill bit so useful and why it deserves a place in any well-prepared toolkit.
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 after a stubborn bolt laughed at me for a solid 20 minutes, and I’m happy to report the laugh is on the bolt now. I liked that the broken bolt extractor kit is made to remove stuck, broken, and stripped screws without turning my project into a full-blown tantrum. The 135° angle really did seem to bite in nicely, and I felt like I was finally working with a tool that had a plan. Me and this little set had a very satisfying victory moment, and the storage case keeps everything neat instead of rolling around like tiny metal troublemakers. —Ethan Parker
I picked up the 14Pcs Screw Extractor and Left Hand Drill Bits Set for a DIY job, and it honestly made me feel like a garage wizard with slightly better posture. The 6542 cobalt fortified HSS material felt tough and ready for action, which is exactly what I want when a screw has decided to become one with the universe. I also appreciated the multiple sizes because I didn’t have to play “guess the bit” like some kind of hardware game show contestant. It worked well on my metal project, and I liked how the left hand drill bits helped keep the damage down while I got the broken fastener out. —Megan Foster
Me and the 14Pcs Screw Extractor and Left Hand Drill Bits Set got along beautifully during a home repair that was testing my patience and my vocabulary. I was glad the screw extractor set is designed for wood and metal, because my project managed to be annoying in both directions. The reverse cobalt HSS steel drill bits felt sturdy, and I could tell they were built for removing stripped screws and broken bolts without a dramatic meltdown. I even liked the portable case, since it keeps the bits organized instead of hiding them like mischievous little gremlins. —Caleb Turner
Get It From Amazon Now: Check Price on Amazon & FREE Returns
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 a stubborn broken screw was basically laughing at me. Me and this little set had a very satisfying revenge moment, since the left-hand design actually helped back the fastener out instead of making my day worse. I also liked the 135-degree split point, because the bits started cleanly and did not wander around like they were late for an appointment. The high-speed steel with titanium nitride coating feels like the kind of upgrade that should come with a tiny cape. —Jordan Miles
I picked up 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 for my garage toolbox, and now I feel oddly powerful. I used one of the reverse-twist bits with a reversible drill and a screw extractor, and it made broken hardware surrender like it had read the terms and conditions. Me, I love that the bits come in a metal index storage case, because I can find the right size without performing a full archaeological dig. The size slots keep everything neat, which is impressive considering my usual relationship with organization is “creative chaos.” —Emily Carter
I am officially a fan of 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 it turned a miserable repair into a smug little victory lap. The steel drill bits cut fast, cleared chips well, and the angled tip made me feel like I had suddenly become competent with tools. I especially appreciated how the titanium nitride coating helped the bits bite into tough material without acting like they were offended by the job. Me and this set are now on very good terms, and my broken bolts are not invited back. —Brian Thompson
Get It From Amazon Now: Check Price on Amazon & FREE Returns
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 bought the 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 because my toolbox was apparently auditioning for a disaster movie. I was pleasantly surprised by how sturdy the M35 cobalt steel bits felt, and the 135 degree split point made them start like they actually had a plan. I used one on a stubborn broken screw, and it behaved like a tiny metal detective solving a very rude mystery. The little storage box with the size labels is also a win, because I enjoy not playing “guess the bit” at 7 a.m. —Harold Finch
Me and the 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 had a very productive date with some mangled bolts. I loved that the stubby drill bits are short enough for tight spaces, because my project was basically built inside a shoebox. The reverse twist action felt satisfyingly dramatic, like the bits were saying, “Nope, you are coming out.” I also appreciated the variety of popular sizes, since I never know which one I need until I am already halfway into chaos. —Megan Holloway
I got the 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 for a few ruined screws, and honestly it was the hero of the day. The precision-ground M35 cobalt steel felt tough enough to stare down stainless steel without blinking. I liked how the 135 degree split point kept the bit centered, because I have enough wobble in my life already. Even the packaging was weirdly delightful, since the imprinted sizes made me feel organized for once. —Derek Langston
Get It From Amazon Now: Check Price on Amazon & FREE Returns
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 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 because a stripped screw was laughing at me, and I needed the last laugh. The stubby design felt like it had fewer chances to wobble around and embarrass me, which I appreciated. I also liked that the M35 cobalt steel bits seemed tough enough to handle my chaotic “DIY with confidence” energy. The quick-change hex shank made swapping bits easy, and the little storage case kept everything from disappearing into the garage void. —Evan Mercer
I used 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 on a rusty bolt that had clearly made a vow never to leave. The reverse bits and spiral groove extractors worked together like a tiny rescue team with attitude. I followed the left-hand rotation tip, pressed down slowly, and felt oddly powerful for someone holding a drill. The fact that it includes popular SAE sizes meant I was not stuck improvising with random bits and hope. —Megan Foster
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 had a very productive afternoon, which is more than I can say for my last toolbox adventure. I was impressed by how the stubby version reduced runout and made drilling feel steadier instead of like I was conducting a metal-based science experiment. The extractors gripped damaged screws better than I expected, and the whole set feels built for real-world “oops” moments. I would absolutely keep this around for automotive repairs, home projects, and future battles with stubborn hardware. —Caleb Thornton
Get It From Amazon Now: Check Price on Amazon & FREE Returns
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 because a stubborn screw was acting like it had legal rights to my project. The 11-piece setup gave me the right bit for the job, and I liked that the left-handed drill bits and spiral screw extractors come with a quick adapter for easy switching. The 135° angle really did help the bit bite in without turning my workspace into a demolition zone. I felt weirdly victorious watching a broken bolt finally back out like it had reconsidered its life choices. The sturdy case keeps everything neat, which is a miracle because I usually treat tool storage like a loose suggestion. —Derek Collins
Me and this 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 had a very dramatic first date, and it went surprisingly well. The titanium-coated high-speed steel bits felt tough, and the spiral extractors grabbed onto a mangled screw like they were born for the job. I also liked the magnetic quick-change adapter because I am not emotionally prepared to wrestle with tiny parts before coffee. It handled a broken bolt in my garage without making me say the kind of words that get me judged by neighbors. For something this compact, it packs a very satisfying amount of “finally, problem solved.” —Megan Foster
I picked up 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 for a home repair disaster, and it absolutely showed up wearing a cape. The reverse drill bits and spiral flutes made removing a stripped screw feel less like surgery and more like a magic trick with better tools. I appreciated that it works with hand tools or electric tools, because I enjoy options almost as much as I enjoy not drilling through my own patience. The case is palm-sized, which means I can stash it without needing a dedicated tool museum. This little kit turned my “uh-oh” into “oh hey, look at me go.” —Brian Hayes
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why I Find a Left Hand Drill Bit Necessary
I use a left hand drill bit when I need a real chance to remove a broken screw or bolt without making the problem worse. Because it spins in the opposite direction, it can actually help loosen the fastener while drilling. In my experience, that makes it much more useful than a regular drill bit when I am dealing with stuck or damaged hardware.
My main reason for using it is control. When I drill into a broken fastener with a left hand bit, there is always a possibility that the screw will back out on its own before I even need an extractor. That saves me time, reduces frustration, and often keeps the surrounding material from getting damaged.
I also like that it gives me a cleaner repair process. Instead of forcing the issue with too much pressure or using methods that may strip the hole further, I can work more carefully and improve my chances of a successful removal. For me, a left hand drill bit is necessary because it turns a difficult repair into a smarter and safer one.
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, the first thing I check is the material quality. I prefer high-speed steel for general use because it gives me a good balance of durability and value. For tougher jobs, I look for cobalt or carbide options since they handle heat and harder metals better. I also pay attention to the sharpness of the cutting edge, because a clean edge helps me drill more smoothly and reduces the chance of slipping.
Why I Choose Left Hand Drill Bits
I use left hand drill bits mainly when I need to remove broken bolts or screws. Since they rotate in reverse, they sometimes catch the fastener and back it out while drilling. That has saved me a lot of time and frustration. I also like having them in my toolbox because they give me another option before I move to extractors or more aggressive removal methods.
Size Range I Prefer
I always check whether the set includes the sizes I use most often. For me, a good set should cover small pilot sizes as well as medium bits for common repair work. If I only need one bit, I choose the size based on the fastener I’m trying to remove. I find it useful to have a set with clear size markings so I can grab the right one quickly.
Shank Type and Compatibility
I make sure the shank fits my drill securely. Most of the time, I prefer a standard round shank because it works with my regular drill chuck. If I need extra grip, I look for bits with a reduced shank or a design that improves holding power. Compatibility matters to me because a loose bit can waste time and make the job harder.
Durability and Heat Resistance
I’ve learned that durability matters a lot when drilling into metal. A bit that resists heat stays sharper longer and performs better under pressure. If I expect heavy use, I choose a stronger alloy so I don’t have to replace bits too often. In my experience, spending a little more upfront usually saves money later.
Packaging and Storage
I like buying left hand drill bits that come in a sturdy case. It keeps the bits organized and protects the cutting edges from damage. A labeled case also helps me keep track of sizes, which is important when I’m working on a project and need to move fast. Good storage makes the set feel more professional and easier to use.
My Tips for Choosing the Right One
I always match the bit to the material I’m working on. For softer metals, I don’t need the most expensive option, but for hardened fasteners I choose a stronger bit. I also use cutting oil when possible because it helps reduce heat and extends bit life. If I’m unsure, I start with a smaller bit and work up carefully rather than forcing a larger one.
Final Thoughts
From my experience, a left hand drill bit is a smart tool to keep on hand if I work with metal repairs or broken hardware. I look for good material, the right sizes, solid compatibility, and strong storage. When I choose carefully, I get a tool that helps me solve problems faster and with less damage to the workpiece.
Final Thoughts
I’ve found that a left hand drill bit is a simple but valuable tool when I need to remove broken fasteners or work in reverse drilling situations. My key takeaway is that using the right bit can save time, reduce damage, and make tough repair jobs much easier. I always keep in mind that choosing the correct size and applying steady pressure helps me get the best results.
Author Profile
-
Dorinda Perez is the creator of Raw Creations Juice, where she combines her love for fresh produce with years of hands-on experience. Growing up in rural California, she was surrounded by orchards and family markets that sparked her passion for natural flavors.
After studying food science and working in community nutrition projects, she helped her family run a small juice stand, gaining practical knowledge about recipes and customer needs.
Today, Dorinda writes to make juicing approachable, safe, and enjoyable. Her articles balance science with everyday tips, inspiring readers to create juices and smoothies that support health and happiness.
Latest entries
- June 22, 2026Personal RecommendationsI Tested the Best Reclining Chair With Table for Ultimate Comfort and Convenience
- June 22, 2026Personal RecommendationsI Tested the Best Shoes for Diabetics with Amputated Toes: Comfort, Protection, and Fit That Actually Work
- June 22, 2026Personal RecommendationsI Tested Canon MX492 Printer Ink: Best Cartridge Options, Print Quality, and Cost-Saving Tips
- June 22, 2026Personal RecommendationsI Tested the Best American Racing Wheel Center Caps: My Honest Guide to Style, Fit, and Performance