Neiko 03175A Auto Oxygen Sensor Wrench features a two-sided flexible head and an ergonomic handle to provide double the function in one tool. It is constructed of extra strong steel body and head to ensure longevity. Dual-sided design has a 6-point and 12-point configuration allowing more grip in tight areas to get the job done. The contoured handle provides better leverage in confined areas and angled to perfect odd positions. This is the perfect tool to add into any professional workshop, home garage setups, or just as an additional to your tool kit.