Does anyone have a set or used a set like this it sure worked great for me had a 3/4 " bolt I could not break lose with a 1/2 inch drive ratchet I was scared it was going to snap the head off so I tried my impact that I never use with 3/8 drive socket cracked it a good one with a 3 lb. Hammer broke it right loose I am in disbelief it worked very happy.