Purchased for a specific application because I was unable to remove a 30mm nut from a motorcycle front sprocket. This impact wrench loosened the nut within 5 seconds! As you might imagine I am delighted with the tool and only wish I had purchased it much earlier. Apart from stubborn nuts it will be of use to me in loosening those vehicle wheel bolts which have probably been overtightened by similar impact wrenches that most tyre fitters use these days. I was also very impressed with the delivery period which was within 4 days of my order. The quality of the wrench appears to suggest that I should get a good amount of usage out of it.