
If you have any doubts about the strength and quality of this product, I can assure you that you will be 100% satisfied. I was a little scared that I wouldn't buy a big brand for a lot more money, but they turned out to be worth their weight in gold for me. On a 50 year old VW Beetle I had to loosen rusty stuck transmission bolts and they worked perfectly. I hammered them into rusty glue bolts and put over 150 ft lbs on them, removed all 48 bolts and still looked brand new. In fact, I was surprised by their strength.