
These chromoly steel extractors are very effective at what they're supposed to do: Extract those rounded nuts and bolts. In addition, you can use a hammer to apply the force needed to remove the most stubborn bolts or nuts. They are very strong and durable. You should be able to remove most nuts and bolts that may bite enough on the head of the nut or bolt being removed. Excellent carry case to organize and store them. The size range should fit almost all of your sizes you will come across by.So many wasted hours I've been stuck in the past trying to ignite, cut, tighten, etc. stripped nuts and bolts, although I've done it in a few minutes could have done. highlighted.