Use your air hammer to easily remove obstructed O2 sensors and diesel NOx sensorswith the LT994 Shockit Socket O2 Sensor Removal Kit from Lock Technology Inc.
It features a low-profile design for limited access and long-profile design for deep recessed Ford, Toyota and Lexus applications and also removes NOx sensors on Kenworth, Cummins, International, Detroit and Volvo diesel truck engines.

Other features include: non-slip self-centering air hammer angled 11-in. punch for limited access applications ; 18mm dual-sided tap/bottoming die for O2 sensor and mounting hole threads; and dual ear socket design for 90° rotation without repositioning socket.
For more info: ltitools.com