NEIKO 01925A Screw-Extractor And Left-Hand Drill-Bit Set, HSS M2 Steel Drill Bits, Alloy Spiral Flutes, Reverse Drill-Bit And Bolt Extractor, Easily Remove Stripped Screws And Broken Bolts, 10 Pieces

Just like any spiral flute extractors they are not great but I have gotten bolts and screws out with them so I consider that a win. Drill bits are fine. Have broken most of the extractors at this point - 3 years since I bought them. But that is to be expected with spiral flute extractors.

I got my hands on the Screw-Extractor and Left-Hand Drill-Bit Set, and it's been an absolute game-changer for my automotive repair work. The set's durability and performance have been nothing short of impressive, and it's a clear winner compared to the name-brand extractors available at major retail stores. The best part? It comes at a fraction of the cost. Using it to extract bolts from vehicles has been a breeze, thanks to the effective left-hand drill bits and screw extractor. It grips onto stubborn bolts firmly, making removal a quick and efficient process without causing any damage to the surrounding components. The affordability of this set is what initially caught my eye, and after putting it to the test, I can confidently say it's worth every penny and more. The quality of the materials used is top-notch, and even with frequent use, I haven't encountered any signs of wear or breakage. In the unlikely event that something does go wrong, I wouldn't hesitate to buy another set. This product has earned a permanent place in my toolbox, and I highly recommend it to anyone in need of a reliable and cost-effective bolt extraction solution.

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.

...that they're crap. I used a punch to make an indent in the center of the broken bolt. I started with the small drill bit being careful after so many reports of it breaking. It did nothing but get dull and then it snapped in two. I went to the nest size up and same thing. I went to my tool chest and found a bit that would cut into the bolt. Time for the extractor. I couldn't get any of them to bite. The whole kit is apparently just for decoration. The nicest thing about the kit is the metal case, but even it has it's flaw. It's that little window that lets you see the bits and extractors. Opening the case is okay, but when closing it the bits all get hung up in the window so the case won't close. You have to close it carefully so this doesn't happen. Lesson learned. I threw the kit out.

Works as described.

I think I'm very good about preventing rounded heads on fasteners, but even so, it still happens on occasion. I bought this kit to remove some M6 allen/socket head bolts that had seized in place on an engine pulley and they were a pretty soft grade 8.8 bolt. In hindsight, more penetrating lubricant and time or some heat and a hammer probably would have helped, but I was impatient that day. The reverse thread drill bit worked as good as I could have ever asked. I made sure to keep the drill bit going in straight, speed relatively low, and occasionally stopping to clean chips and lube the drill bit and it quickly cut through the bolt making very nice chips. The extractor on the other hand, leaves more to be desired. I tapped in the extractor with a hard plastic mallet and used an adjustable crescent wrench to turn. The bolt did finally make a "snap!" and came out, but two other things also happened. The extractor, surprisingly, is a somewhat soft metal metal and twisted a little during removal. I'm honestly surprised the extractor hasn't twisted apart yet, as it has twisted about 20° right where the extractor goes into the head of the bolt, and this is only after two bolts. In addition to twisting, the extractor bent about 2-3°. This is possibly due to me using a crescent wrench instead of a tapping wrench, but not nearly as big of an issue as the twisting part. All in all, it's still a pretty incredible value that you can get this entire set for so cheap. Definitely not what you want to get if you want something to last decades, but excellent for quick fix.

This is a great value high quality set. If you take your time and drill slowly you won’t have troubles with broken bits. Automobile engine bolts are tough. If you take your time drilling out the pilot hole you won’t have troubles.

Life saver. Don’t know how long the drill bits will last but the extractor bits seem pretty good. I was able to remove a bolt that was broken off, and one that the head was stripped and I already tried slotting with a cut off wheel. Both on a 2009 Yamaha YFZ450R. *** HAMMER THE EXTRACTOR BIT IN, and hand crank with a crescent wrench or something similar. I also use this brand for bits and they are great.

نوعيه تعبانه جدا

Extremely sharp drill bits that seem to stay sharp too. The extractors don’t bite very well, and chewed up the steel studs instead of removing them. Ended up drilling the studs out.

Onestamente non mi sono servite, non le consiglio perché non mi hanno risolto il problema.

Excelente marca

These are well made and did the one job that I scheduled for them in seconds. The left handed thread drill bit actually took the broken bolt out without using the easy out. I just followed directions and did not force the bit beyond its tensile strength.