The Lock Technology Shockit Socket O2 Sensor Removal Kit, No. LT994, is designed to work where ratchets, wrenches, and sockets don't fit. Use air hammer power to access, loosen, and remove frozen and obstructed O2 sensors. The kit features a low-profile design for limited access and a long profile design for deep recessed Ford, Toyota, and Lexus applications. The kit also removes knock sensors on Kenworth, Cummins, International, Detroit, and Volvo diesel truck engines. Non-slip, self-centering air hammer angled 11" standard punch for limited access applications. It features 18mm dual sided tap/bottoming die for O2 sensor and mounting hole threads and dual ear socket design for 90 degree rotation without repositioning the socket. Additional punches available: 5.5" Short Punch, No. LT1910PS, and 22" Long Punch, No. LT1910PL.