The LTI Tools by Milton Shockit Socket Diesel NOx and Particulate Sensor Removal Kit, No. LT996D, uses the force and vibration of an air hammer to loosen and remove rusted diesel exhaust sensors without damaging the threads. With its compact size, users can access hard-to-reach sensors. Each Shockit Socket has three driving ears with 8mm inverted index holes for tightening and loosening, allowing for the most stubborn sensors to be worked back and forth during removal. The kit includes a non-turning offset 8mm radius tip 11" Standard Shockit Punch, No. LT1910P, as well as 20mm, 22mm, and 27mm bottoming tap and dies for sensor and mounting hole threads.