The Tusk Valve Stem Tool is a great addition to your tool kit when out riding your motorcycle, ATV, or UTV. This tool can re-tap threads on the inside and outside of your valve stem, ream the inside valve and it also features a valve stem core remover. This will work on A.C. unit valves as well. When looking for parts and accessories for your motorcycle, ATV, or UTV, think Tusk!