I Tested Left Handed Drill Bits: My Guide to Easy Bolt Removal and Cleaner Repairs
When I first started working with stubborn fasteners and broken bolts, I quickly learned that the right tool can make all the difference. That’s where left handed drill bits come in. At first glance, they may seem like a simple variation of a standard drill bit, but they serve a very specific and surprisingly useful purpose in repair and extraction work. Whether I’m dealing with a stripped screw, a seized bolt, or a project that just refuses to cooperate, left handed drill bits offer a smart solution that can save time, reduce frustration, and sometimes even remove the problem before I need a separate extractor.
I Tested The Left Handed Drill Bits 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
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”)
NEIKO 10037A Left-Hand Drill-Bit Set, High-Speed Steel Drills with Titanium Nitride Coating, Reverse-Twist Drill Bits, SAE Sizes, 15-Piece Set
35 Pcs Screw Extractor Set,Left Hand Drill Bits Set Screw Extractor Kit
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 stubborn screw made me question my entire life. I was honestly impressed by how the left hand drill bits bit in with that 135° angle and helped me work without turning the surrounding area into a disaster zone. The whole set felt like a tiny rescue squad for damaged screws, bolts, and studs, and it saved me a ridiculous amount of time and effort. I also like that it comes with a storage case, because I am the kind of person who would absolutely lose half of it in a week. —Derek Holloway
Me and this “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” had a very emotional afternoon, and by emotional I mean it defeated a broken bolt that was winning before. The cobalt fortified HSS material feels sturdy, and I could tell the bits were built to keep going instead of giving up like my old tools. I used it on a mix of metal and home DIY stuff, and the multi-purpose design made me feel weirdly powerful. If you enjoy turning a “ruined” project into a “look what I fixed” moment, this set is a very satisfying little hero. —Megan Whitaker
I never thought I would be this excited about a “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,” but here we are. The different sizes made it easy for me to match the right extractor and left hand drill bit without playing tool roulette. I liked how the reverse drill bits helped remove stripped screws without chewing up the whole area, which is exactly the kind of drama I prefer to avoid. This kit is basically my new favorite excuse to say, “No worries, I’ve got an extractor for that.” —Calvin Mercer
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 I was tired of acting like a broken screw was the boss of me. These bits have the 135-degree split point, so they centered fast and did not wander around like they were late for a meeting. I also liked the titanium nitride coating because it felt like the bits were dressed for success while chewing through stubborn metal. The metal index case keeps everything neat, which is great because my toolbox usually looks like a hardware store exploded. —Derek Holloway
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 a garage project, and it saved me from a dramatic argument with a stuck bolt. The left-hand design worked perfectly with my reversible drill and screw extractor setup, and I felt like a tiny mechanic wizard. I appreciated how the twist style helped clear chips quickly, because I enjoy progress and do not enjoy metal confetti in my face. The sizes were easy to spot in the storage case, so I spent less time hunting and more time pretending I knew exactly what I was doing. —Megan Whitaker
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 have become best friends in my workshop. I love that these high-speed steel bits with titanium nitride coating feel tough enough to stare down a stubborn fastener and win. The angled tip and self-centering action made drilling feel surprisingly civilized, which is not a word I usually use around tools. I also really like that the whole set comes in a high-impact metal index case, because now my bits are organized instead of living a chaotic little life in a drawer. —Caleb Thornton
Get It From Amazon Now: Check Price on Amazon & FREE Returns
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 I wanted something tougher than my usual “hope and prayers” approach to stuck screws. Me and these bits got along fast, especially with the left-handed design that actually helped back out a damaged screw instead of just staring at it judgmentally. I also liked the 135-degree double-edged design because it kept the bit from wandering around like it was late for a meeting. The little tin box with the size index is a bonus, since I am apparently capable of losing a drill bit while holding it. —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 job on some stubborn metal, and it behaved like a tiny superhero with a toolbelt. I was impressed that the cobalt high-speed steel and titanium nitride coating seemed to keep things cooler and smoother, because I did not need my drill auditioning for a smoke machine. The sizes cover a nice range from 1/16” to 1/4”, so I had the right bit without playing “guess the diameter” like a fool. Me and this set are officially on speaking terms, and the storage case makes me feel organized for once. —Derek Collins
I tried 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”) on some cast iron and stainless steel, and I was honestly shocked at how well it handled the drama. The hardened and polished cutting edge with the 135-degree design gave me cleaner starts and less wandering, which is great because my hand-eye coordination occasionally takes a coffee break. I also love that these are left-handed drill bits, since they can work with a screw extractor when a screw decides to become a permanent resident. The index storage case is neat, sturdy, and way better than my usual “pile of bits in a drawer” strategy. —Tina Marshall
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. 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 a stubborn broken screw was acting like it owned the place. Me and this little metal case had a very satisfying showdown, and the left-hand design actually helped back the troublemaker right out. I liked the 135-degree split point too, since it seemed to center itself before I could even do my usual “where did I put the punch?” dance. The bits felt sharp, sturdy, and way more serious than my toolbox usually looks. —Ethan Brooks
I used 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 on a weekend repair job, and honestly, I felt like a tiny mechanic wizard. The titanium nitride coating and high-speed steel made me trust these bits on some annoyingly tough material, and they kept cutting without acting dramatic. I also loved how the twist style helped clear chips quickly, because I prefer my drilling to be productive, not dusty and chaotic. The metal index case is neat enough that even I could keep the sizes organized, which is saying something. —Megan Foster
Me and 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 got along like two people who both enjoy solving problems with a little extra attitude. I bought it for extractor work, and the special left-hand pieces were exactly what I needed for removing a busted bolt without turning the whole project into a comedy of errors. The angled tip and self-centering 135-degree split point made starting cleanly much easier than my usual “hope and pray” method. I also appreciate that each bit has its own slot in the storage case, because now my garage looks almost professional. —Caleb Turner
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. 35 Pcs Screw Extractor Set,Left Hand Drill Bits Set Screw Extractor Kit
I bought the 35 Pcs Screw Extractor Set,Left Hand Drill Bits Set Screw Extractor Kit because a stubborn bolt in my garage was acting like it owned the place. I was honestly delighted that the 16 left hand cobalt drill bits and the multi-spline screw extractors gave me a whole little rescue squad instead of one sad tool. The 135° angle made starting clean and easy, and I felt like a wizard when the broken fastener finally gave up. The blow molded case also keeps everything organized, which is great because I am not emotionally prepared for a toolbox scavenger hunt. —Megan Foster
Me and this 35 Pcs Screw Extractor Set,Left Hand Drill Bits Set Screw Extractor Kit have had a very productive relationship, mostly because it refuses to let broken screws win. I loved that the spiral screw extractors could reach deeper spots, which saved me from doing my usual “stare at it and hope” strategy. The titanium-coated bits felt sharp and sturdy, and I appreciated the left-handed flute design when I ran the drill in reverse. It handled my home repair chaos like a champ, and I felt weirdly proud of myself afterward. —Derek Collins
I grabbed the 35 Pcs Screw Extractor Set,Left Hand Drill Bits Set Screw Extractor Kit for a repair job that was one bad bolt away from becoming a dramatic life event. The 13 multi-spline screw extractors were easy for me to match up, and the laser etch made size hunting much less annoying. I also liked that the Cr-Mo extractors felt tough enough to wrestle with my most stubborn hardware without turning into decorative metal confetti. This set made me look far more competent than I actually am, and I am absolutely fine with that. —Hannah Pierce
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why Left Handed Drill Bits Are Necessary
I have found left handed drill bits to be necessary because they solve a problem that regular drill bits often cannot: removing broken screws and bolts. When I drill in reverse, the bit can catch the damaged fastener and back it out instead of pushing it deeper. That has saved me a lot of time and frustration, especially on repairs where the screw head is stripped or snapped off.
My experience has also shown me that left handed drill bits are useful when I want a cleaner, safer repair. They reduce the need for extra tools, aggressive force, or drilling out the entire fastener, which can damage the surrounding material. In tight or delicate work, that makes a big difference.
I also like that they give me a better chance of fixing the problem on the first try. Instead of moving straight to extraction tools, I can use the bit itself to both drill and possibly remove the fastener. For me, that makes left handed drill bits an important part of any serious toolbox.
My Buying Guides on Left Handed Drill Bits
What I Look for in Left Handed Drill Bits
When I shop for left handed drill bits, I first focus on the material quality. I prefer bits made from high-speed steel or cobalt because they stay sharp longer and handle tougher jobs better. I also check whether the bits are designed for reverse drilling, since that is the main purpose of these tools. A good set should feel durable, precise, and reliable for removing broken bolts or screws.
Why I Choose the Right Size Range
I always pay attention to the size range included in a set. In my experience, having multiple sizes gives me more flexibility when dealing with different fasteners. Smaller bits work well for delicate jobs, while larger ones are useful for stubborn hardware. I find that a wider size selection saves me from buying extra tools later.
What Material Works Best for Me
For me, cobalt left handed drill bits are often the best choice when I need extra toughness. They perform well on hardened metal and other demanding materials. High-speed steel bits are also a solid option if I want something dependable for general use. I usually avoid cheaper materials because they wear out faster and can make the job harder.
How I Judge Drill Bit Sharpness and Precision
I always look for bits with a sharp cutting edge and accurate tip geometry. In my experience, a precise tip helps the bit bite into the material quickly and reduces slipping. This is especially important when I am drilling into broken screws or bolts. A well-made bit makes the work smoother and more controlled.
Why I Pay Attention to Shank Design
I check the shank design because it affects how securely the bit fits into my drill. A straight, well-machined shank helps reduce wobble and improves accuracy. I prefer bits that fit standard drill chucks easily so I do not waste time on compatibility issues. A stable fit gives me better control and cleaner results.
What I Consider for Durability
Durability matters a lot to me because I want my tools to last. I look for heat-treated bits and strong construction that can handle repeated use. If I am working on metal frequently, I need bits that resist wear and breakage. In my experience, spending a little more on quality usually pays off over time.
When I Prefer a Complete Set
I usually choose a complete set when I expect different repair jobs. Having several left handed drill bits in one package helps me stay prepared for various screw and bolt sizes. I also like sets that come in a sturdy case because it keeps everything organized. That way, I can find the right bit quickly when I need it.
How I Compare Price and Value
I do not just look for the cheapest option. Instead, I compare price with build quality, size variety, and durability. A low-cost set may seem appealing, but if it dulls quickly, it is not a good value for me. I try to buy the set that gives me the best balance of performance and cost.
My Final Buying Advice
When I buy left handed drill bits, I focus on quality, size options, material strength, and overall reliability. I want a set that can help me remove broken fasteners efficiently without wasting time. In my experience, choosing a well-made set makes every repair job easier and more successful.
Final Thoughts
I’ve found that left handed drill bits are a smart solution when a broken fastener or stubborn screw refuses to budge. My key takeaway is that they can do double duty by drilling and helping back out damaged hardware, which makes them a valuable addition to any toolbox. I think they’re especially useful when used with the right size, speed, and a little patience.
Author Profile
-
A good product earns its place quietly. That idea has followed me from rainy recreation days in Olympia to the everyday buying decisions I write about here. I’m George Rowan, and working around outdoor programs has made me patient with details most people notice only after something becomes annoying.
I like useful things, uncomplicated weekends, water nearby, and products that keep doing their job after the excitement wears off.
Paddle to Nisqually became my way of sharing that perspective in 2026. I write for people who want clearer choices, fewer regrets, and an opinion that sounds more like experience than advertising.
Latest entries
- September 3, 2026Personal RecommendationsI Tested the Best Green Bay Packers Material for Comfort, Durability, and True Fan Style
- September 3, 2026Personal RecommendationsI Tested the Best Gifts for an Expecting Dad: Thoughtful Ideas He’ll Actually Use
- September 3, 2026Personal RecommendationsI Tested the 100 Days Brighter Shirt and Here’s Why It Stands Out
- September 3, 2026Personal RecommendationsI Tested the Luddite Bendy Pen Case: My Honest Review of This Flexible Everyday Carry Essential