Olsa Tools 13-Piece Bolt Extractor Offset Wrench Set - 6-Point Box End Rounded Nut Remover for Stripped Bolts & Nuts - Metric & SAE Professional Grade Wrench Kit for Automotive Repair, Plumbing, and DIY Projects

I spent hours trying to remove a slightly rounded bolt located in a tight spot. I used multiple extraction tools but none of them fit into this location. In desperation, I ordered the Olsa wrenches hoping it might work. Sure enough, once I got the Olsa wrench set, it grabbed right onto the rounded nut and off it came. It was such a relief! It worked as promised!I have spent lots of money just to remove one rounded Bolt and I bought this set and I was able to use it in a very confined area needless to say they are very good sturdy in a great value for the priceI soaked the bolt in WD-40 during the night before trying to remove it, but that didn't help.The bolt is the original one which has secured the locking mechanism of the hood for a 1969 Dodge Dart, btw. The extractor's teeth are just not tall or sharp enough to hold on to or dig into the rounded-off edge of that infamous 52-year-old bolt.I've also tried with sockets made for extracting damaged stuff like this. Nothing doing! Maybe because the guilty party is in a confined space and the socket was too big.The other bolt which has also secured the mechanism for years I managed to twist it away with no difficulties with a standard 1/2 inch wrench, though.I will drill that bolt off, instead.I gave this set four stars because I know these wrenches will work on bolts which are not as messed up as the one I'm referencing right now. Also because the extracting wrenches come in a nice box and case, and also because they appear to be made in Canada.No Made in China nowhere on the box!PS: Maybe because I used the 13mm wrench on a 1/2 inch bolt the extraction was unsuccesful, come to think of it.These wrenches removed a hard-to-access bolt with a severely rounded head that I'd been struggling with for two months. I tried various other tools that were supposed to work on stripped bolt heads, but nothing came close to actually getting the job done. I finally tried these wrenches, and BOOM! The bolt came loose almost immediately with no difficulty, and with no visible wear on the wrench teeth.These wrenches are worth every penny.This product is on par with snap on but at a fraction of the price and made in America! I have use it on Exhaust bolts, Suspension Bolts As well a As rounded off bolts Without any issue This is a great product Highly highly suggested this set !Only received half the set company responded fast and sent the rest of the order. Seem very durable happy so far.Works on most simply rounded bolt headsGreat so far used them on trucks and lifts with rusty nuts and boltsHigh quality extractor wrenches. Completely rounded a bolt on an exhaust heat shield. These wrenches gripped and took it out with ease. The tray looks great and matches my snap on trays. My first order was missing 2 wrenches right out of the box. Olsa customer service was great and send a replacement right away. Great tools. Great company. Highly recommend their magnetic socket organizers aswell.Product worked just like a video I saw where a guy ground down the head of a bolt so it had no edges, almost round. I clamped bolt into a vice and still was able to turn bolt in either direction. I tried a standard box end wrench on bolt head, wouldn’t turn. Amazing tool !!! Bought it right away after seeing what it could do in video. I wish they made sockets like that. Highly highly highly recommend ?I tried my sons snap on extractor wrench and it didn’t grab as hard as these ones did and as a bonus they’re about $1,000 cheaper.Les angles agripent un boulon et le dévissé sans problème.Used on 1975 Corvette engine