Blue Spot Tools 01539 10 Piece Bolt Extractor Socket Set, 9–19mm, 3/8" Drive Damaged Bolt and Rounded Nut Remover, Heat-Treated Chrome Molybdenum Steel, Storage Case

I bought these to help remove the sump nut from a 2003 MINI Cooper I'm currently restoring. I needed to drop the oil in order to sort a leaking sump gasket and of course, give it a service. Upon getting underneath the car it appears the previous owner / garage to work on the car had air tooled this sump nut on - to the point where the rubber seal behind the head of the bolt had flattened and was not sealing the sump - oil was leaking around the back of the nut, and the edges were slightly rounded. I set about it with a standard 6-sided 13mm socket on a 1/2" ratchet - wouldn't budge. 4ft Breaker bar? Wouldn't budge as the rounded edges of the bolt meant I couldn't get enough purchase on the bolt without it slipping. Impact driver had the same issue. Jumped on Amazon and nearly bought another non-branded set for almost twice the price but plumped for these instead - partly for the price and partly as these were all metric sizes whereas the other set was a mix of metric and imperial. Got them down to the car today and hammered the #5 (13mm) socket onto the nut. As this was so tight, I didn't fancy putting a 3/8" > 1/2" adapter in the rear of the bolt remover socket but they fit perfectly inside a 19mm impact socket. Stuck this little assembly on the end of my 1/2" Stormforce impact driver and within a couple of seconds the bolt started to move. Popped the socket across to my normal ratchet and finished winding the bolt out. The bolt was well and truly wedged into the bolt remover - I didn't fancy my chances on getting the bolt out to be honest but a bit of heat and a screwdriver hammered down the middle and the two came free. Then the best bit - the bolt was totally knackered (not that it wasn't already and a new one was pre-ordered anyway) but the removal socket doesn't have a single mark on it - the teeth and flutes are in perfect condition and I've given this some proper welly with a 4lb hammer and an impact driver. Couldn't ask for a better result. Awesome, awesome product and wouldn't hesitate to recommend. Buy it now! Thank you Blue Spot and Amazon - one very satisfied customer. :)

I was changing the headers on my bike, and had an M8 x 25 socket cap that would not budge, and theirs no access to even see it really. Absolutely no way I was getting it out without stripping half the bike, but a couple of taps on with a hammer and the 13mm socket in this set undid it straight away. Didn't even leave a mark on the tool either, so they're definitely pretty decent quality. Handy to have a set of them for the future as well, and they're a good price. Recommended.

I needed to remove the 3rd row seats from my LR Defender. The fittings are a dreadful design with the bolt ends exposed to the elements in the wheel arch. Worse still, they're torx bolts and have round heads so no chance of using grips if they're stuck. The first bolt was so tight that I'd broken (not worn), the inside of the torx. Found the right fitting and with a bit of brute force, the bolt was soon off. The second had been a problem for years an the head was badly damaged from an ill-judged attempt to drill through. Bolt removed just bit in and out it came. Not sure how long they'll last, but happy even if two is the limit.

Had a very stuck and rounded nut that wouldn't release on my car, did a great job and got it off first try after gently hammering the right size on. Fairly easy to knock off using a hammer too.

Very good and a fair price

I was having a right chew on trying to get a stuck locking wheel nut out that had been over-torqued. Decided to try these as a last resort and was pleasantly surprised by how well it worked! Smashed the socket onto the head of the bolt with a lump hammer and put a long breaker on it. Had to really give it some force but it didn't let go and the bolt wound right out! The best part is there's no visible damage to the tool so they're made of hard stuff. Would recommend for the price.

I bought this to remove 4 locking wheel nuts on my car. The 17mm size worked fine and took them all off no trouble. When i came to use the set again i used another size. It broke in half straight away with no effort. Returned for refund.

Bought this to try and get a brake caliper retaining bolt off a 16 year old Volvo XC90 that someone had butchered. It was so badly rounded off and damaged I was convinced it wouldn’t work but it was my last option. With plenty of penetrating oil and by applying steady pressure it came out first time. As others have said I think the key is to apply steady pressure and plenty of penetrating oil. I can’t imagine many bolts are harder to remove than off a 16 year old Volvo brake caliper even if they’re not rounded off like mine was, so if it can do this it should manage most jobs.

Worked like a charm! Very sturdy and exactly what I was hoping for.

bien

très satisfait de cet outil, j'ai utilisé la douille de 17 sur un boulon arrondi et très grippé, et c'est venu tout seul, de plus, la petite tige en métal est très pratique pour extraire le boulon de la douille

Le coffret est sympa, mais il ne faut pas exercer de trop grande force. L'acier est fragile et il est plutôt destiné à un déblocage facile / faible force à appliquer. J'ai cassé le mien sur un goujon de roue maté ... Service Amazon au top, échange sans rechigner.