Powerbuilt 647094 7/8"(22Mm) Extended Oxygen Sensor Wrench 2 inch offset design adds options for reaching and turning Oxygen O2 sensors Fits 7/8" And 22mm O2 sensors Premium chrome vanadium steel construction 3/8 inch square drive for use with ratchet, breaker bar, extension bar etc. Meets or exceeds ANSI standards For easy removal and installation of most oxygen sensors Extended reach for added utility 3/8 inch square drive for use with ratchet or breaker bar Black anodized chrome vanadium steel