Alden Grabit Pro and Grabit Micro Supreme 8 Piece Extraction Set 8440p + 4507p - Made in USA Top Quality Screw and Bolt Extractor

With this kit, I was able to remove 95% of the stripped screws without extra effort.

These are not worth the money. Bought both sets for work, part of my job is extracting broken bolts. The first time I used one it worked and I was impressed but found out using that bit one time burnt the life out of it. Tried several of the other seven bits but no luck. I don’t even bother giving them a shot anymore and threw them in the bottom of my toolbox to be forgotten. Better off just using left handed drill bits but be careful when ordering them from Amazon, they send you normal ones and it’s not worth paying the return shipping to get your money back, just go to your local hardware/tool store to get them.

These bad boys just saved my ass. Easily removed some stripped screws off an oil pump cover on my truck to fix an oil leak. It is recommended that you use an impact driver with these bits. I used a "Milwaukee 2753 M18 FUEL 1/4" Hex impact Driver" set to slow speed and carefully removed the screws.

I gave it five stars because I was able to extract a screw with a messed up allen head with no problems. It wasn't however are a really tough screw to remove. So, I'm not really sure how helpful this review is.

Doesn't work on the suggested size screws

I purchased these from a local store, and they did not do what I needed. My project was removing a steel screw that was seized in aluminum. The head of the screw had broken off, so I had a PITA job ahead of me. First, I purchased a single Grabit extractor for the screw size. These bits are really sized for a screw that still has a head on it. It was too large, so I returned it and purchased the Grabit Micro set. It's worth mentioning that the quality and hardness of this first tool was excellent. The tool (No. 1) did not suffer any damage after many attempts at removal. The next problem I ran into was with the Grabit Micro set. I first tried the Micro No. 3, and it was able to bite into the screw just fine. However, the Milwaukee drill I was using (almost new) could not grip such a small tool effectively. All it did was slip around on the tool once the tool had bitten into the screw. I finally tried the Micro No. 4 bit, which had a larger size hex area. I couldn't get it to bite, because my project screw had been drilled too much, and this bit was stripping off the aluminum. Hindsight being 20/20, I wish I would have just drilled the thing out from the start. Then I could have just put a long screw through the hole with a nut on the other side.

I bought this a while back and have had it in my tool box for a while. Today was the day I needed it. It failed miserably. I could not remove the wood screw I was trying to remove. I would not purchase again.

Good product and good price.