Many people have experienced the problem of loose bolts or nuts on wheels, suspension components, rusty or stuck nuts on the engine, etc. It is possible to go on for a long time. To unscrew the fastener in such cases, quite a problematic task. The easiest way to solve this problem is with heads for stripped bolts and nuts. This tool allows you to unscrew rounded, damaged bolts or nuts without too much effort, while you spend a minimum of your time. The structure of the heads has a spiral threaded inner surface, which prevents it from twisting like conventional socket or horn wrenches. No need to strain, tap, drill, etc.