NEIKO 10037A Left-Hand Drill-Bit Set, High-Speed Steel Drills with Titanium Nitride Coating, Reverse-Twist Drill Bits, SAE Sizes, 15-Piece Set
$29.99
Price: $29.99
(as of Oct 01, 2025 19:26:09 UTC – Details)
The NEIKO Left-Hand Drill-Bit Set is an essential kit for anyone. Ideal for automotive or home use, these high-speed drills remove broken fasteners, screws, bolts, and studs with ease. Each angle-tipped drill bit is constructed with a twist style and a 135-degree split point for accurate self-centering. Made for fast and efficient cutting speed, our bits prevent walking to clear chips and particles extra quickly. Each bit is made of high-speed steel with a durable titanium nitride coating for ultimate corrosion resistance. This heavy-duty material offers a high surface hardness to help penetrate tough materials and reduce friction between the bit and the workpiece. The left-handed bit design is perfect for reversible drills with screw extractors, making this kit ideal for home maintenance, auto repairs, and more.
Our titanium drill-bit set is available with 5, 13, or 15 standard SAE twist drills. The 5-piece SAE set is made with M35 cobalt high-speed steel, and it includes the following sizes: 5/64″, 7/64″, 5/32″, 1/4″, and 19/64″. The 13-piece SAE set is made with M2 high-speed steel, and it includes the following sizes: 1/16″, 5/64″, 3/32″, 7/64″, 1/8″, 9/64″, 5/32″, 11/64″, 3/16″, 13/64″, 7/32″, 15/64″, and 1/4″. The 15-piece SAE set is made with M2 high-speed steel, and it includes the following sizes: 1/16″,3/32″,1/8″,5/32″,3/16″,7/32″,1/4″,9/32″,5/16″,11/32″,3/8″, 13/32″,7/16″,15/32″ AND 1/2″.
Each drill-bit set comes with a metal index case for easy transportation between job locations. Each tool has an assigned hole in a drill-bit holder with size index markings for quick organization and easy storage. No matter the job, NEIKO has your back with our durable, dependable, and strong tools.
Is Discontinued By Manufacturer : No
Product Dimensions : 14.17 x 9.06 x 7.87 inches; 0.01 ounces
Item model number : 10037A
Date First Available : May 19, 2007
Manufacturer : Ridgerock Tools Inc.
ASIN : B000BMJX8C
Best Sellers Rank: #9,938 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #53 in Jobber Drill Bits
Customer Reviews: 4.1 4.1 out of 5 stars 7,873 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
TWIST DRILL-BIT SET: Each steel drill bit features an angled tip, a twist style, and a 135-degree split point for precise self-centering. Designed to increase cutting speed, these drill bits prevent walking to quickly clear chips and particles.
QUALITY TITANIUM BITS: These drill bits are constructed of high-speed steel with a titanium nitride coating, providing a high surface hardness to help penetrate tough materials. The steel also reduces friction between the bit and the workpiece.
VERSATILE LEFT-HAND PIECES: The special left-hand design is ideal for use with reversible drills with screw extractors to remove broken fasteners, screws, bolts, and studs during home repairs, automotive garage projects, professional work, and more.
THE RIGHT SIZE: Our versatile left-hand drill-bit kit is available in 5-piece, 13-piece, and 15-piece SAE sets. Choose the high-speed drill-bit set that fits your screw-extractor needs. Each set makes a great addition to automotive or home tools.
ALL-IN-ONE SET: This kit arrives with the drill bits arranged in a high-impact metal index storage case. Each bit has a specific size slot for quick identification and easy organization, portability, and security in your home, garage, or workshop.
Customers say
Customers find the drill bit set works well and comes in handy for various tasks, with one customer noting it’s particularly effective for Grade 5 and lower hardware. The quality and value for money receive mixed reviews, with some finding it decent for the price while others consider it not worth the cost. The durability is concerning, with multiple reports of bits breaking easily, and sharpness is a significant issue as customers report the bits are not sharp at all. While some customers say it removes bolts with ease, others find it difficult to use.
13 reviews for NEIKO 10037A Left-Hand Drill-Bit Set, High-Speed Steel Drills with Titanium Nitride Coating, Reverse-Twist Drill Bits, SAE Sizes, 15-Piece Set
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$29.99
Candice –
Broken off bolt in motorcycle frame
Bolt that holds fairings on broke off into frame. Firstly used automatic punch to start drill hole. Used this left hand drill bit set on reverse, lubed it bit. Used smallest and next size smallest bit. Did not break. I did have trouble getting the smallest drill bit out of the slot in the case, easy enough using some pliers to pull it out or pry par or flat head screwdriver to lever it out. Used with Amazon drill.
Sharkynyc –
VICTORY! It worked well and here is the proofâ¦..
So pleased – a month trying to get this stripped bolt off and I was running low on transmission fluid! I donât write many reviews but hoping this helps the next person.Ok so I had a very badly stripped differential fill Allen plug. Standard plug on a Land Rober SUV. This was semi stripped by prior mechanic and I just made it worse without the right tools. Tried the cold chisel method (you can see from photos I whacked the s&@t out of it and no luck. Bought the other stripped allen key versions on Amazon (the ones that have a slight twist in a standard looking hex/Allen to provide grip) and they just wonât get enough grip (not even close in my case so a big waste of time) if you were as badly stripped out as I was. No chance at all. I was really thinking I would need to learn to weld and go buy a welder to attach another bolt on which was going to be my last resortâ¦Tried this and worked extremely well (was done in 20 minutes) with the following comments:As you can see from the photo I used the 11/32 size which fit about a third of the way into the stripped hex differential plug loose. I tap tapped it in gently with a 3 lb hammer to get it about 2/3 of the way in. You donât need to be poinding it in hard since these have a slight taper which makes them slightly larger as they go further in. As you can see after massively torquing it at the end while successfully remove the fill plug it was ultimately seated about. 90% down. With the large 15mm sized head you know have a solid place to add a socket with a breaker or heavy duty impact.Other comments – IMO very little chance of this snapping off as I see others concerned about – I canât attest to the quality of the metal but the size I was able to use makes it less likely it would snap. If I were to use the smallest 5-6 (9/32 or less) of the extractors provided I would be more concerned about putting a long breaker bar but at this size no issues. I ended up having to put a 15mm socket on a two foot breaker bar / pipe to get this to finally come loose. And once it did it was literally just finger screwing the rest of it off. Amazing how a seized bolt will hold until it doesnât. I tried my 3/8 inch (air) impact gun before the breaker bar which is a low clearance since I didnât have a ton of space. Itâs like 350 foot pounds of torque so a mid range impact and it didnât budge this differential plug although it MAY have weakened it up a bit so my breaker bar worked easier.Best of luck of luck to those reading this but this is the best of 3-4 methods I used and wish I started here since it was easy.Last bit of advice donât underestimate how much torque you need to get one of these seized plugs off! And if you are in a tight area and able to use one of the provided extractors with some reasonable girth a long breaker bar is the way to goâ¦
Hayden Chambers –
Good for small stuff at home/ projects. Wouldn’t rely on these to make a living.
I would rate this 4 stars out of 5 because they surprised me a time or two for both good and bad reasons. The extractors do not seem to be worth anything good. They break easily. The drill bits, however, as long as you use the right ones for the application and with care, they work decently before they dull. I have yet to try and sharpen them and try again, but if I’m needing them, I typically don’t have a way to sharpen them efficiently when I’m working. I’d have to run home or get a sharpener for when I’m working (I work on the road as a mobile mechanic). Of course, the smaller ones are more fragile and I get impatient, so they broke. But for small jobs at home, I’d buy them again. For the rest of my work, I’ll be searching for a better quality set.
Santee-sailor –
Very high quality!
Great product. First time I have ever successfully been able to remove a broken off screw or bolt. I highly recommend this if you have been unsuccessful in the past.
nate –
Inexpensive but still not worth it.
These are horrible, if you are trying to use them on anything metal. They are not sharp at all and will not drill into screws or bolts for extraction(as advertised). 3 bits broke on the first use, without even making a hole first.Maybe they are fine if you only need them for wood, plastic or other soft materials. But personally, the only reason I ever need left-hand drill bits is for bolt extraction.
jose –
Not impressive
Not magnificent. Cheap lefthand drillbit? Yep. Effective? Not very. Broke at least 1 bit. Typical chinese stuff, not for particularly tough jobs, the price says it all.
adamada –
Great product
Great productfast delivery
John –
It either works or it doesn’t. This product does what it says.
I needed this for a specific job. It worked great, so it paid for itself in the first use.
Mr+Ms. Driver –
Top…
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Mark –
Super fragiles, usenlos con cuidado y en superficies que no comprometan el material, se barren con facilidad y no pude quitar nada
Norman –
left hand drill bit worked perfectly, managed to drill in to a stud that had snapped ca 10mm inside the head of my engine. As soon as it bit the stud span out with little swarf and no need for the extractor on this occassion. This made a tricky and time consuming job quick and simple.
Ak –
I had a serious issue with a damaged screw, and this tool was able to extract with ease