Lisle 12230 Oxygen Sensor Thread Chaser , Black

Had to replace the Downstream O2 Sensor on my 2005 Cadillac SRX. The old one was Stubborn and needed to be coaxed out. In the Process, the threads of the bung hole stripped at the top. I needed to re-thread the hole in able to install the new sensor so I shopped for this tool. As soon as I found this Lisle tool, I knew it would be quality. It's a good brand. Total time to chase the threads .... about 20 seconds turning firm and slow. The new sensor screwed right into the hole as tight as it needed to be and my car is back to normal, no check engine lights and running smoothly.

Lisle makes great tools, and this oxygen sensor thread chaser is no exception. Excellent build quality, smooth operation, and it cleans up damaged threads perfectly. If you work with O2 sensors even from time to time, this tool is an absolute must-have. Saves a ton of headaches and keeps you from ruining bungs or manifolds. Reliable, well-made, and worth every penny. Highly recommended for any mechanic.

This worked perfectly for me. The small size makes it easy to fish into tight spaces, too.

This is truly a thread chaser and not a tap. More specifically, I would call this a thread former. I had one of four O2 sensors that did not come out well. The threads were galled up badly. This chaser did work, but required a very large amount of force. The threads were not cut at all. I was able to install and new O2 in the reformed threads.

Works great, fast shipping

High quality as you would expect from Lisle

As we all know, old O2 sensors ruin threads... Before attempting to install any O2 sensor I chase the threads first and tool works perfectly.

Its a thread chaser, nothing special, but works perfectly . Its a should have item if you ever change out an O2 sensor since the threads do get rusty, and dirty from the exhaust. After using this your O2 sensor should go in nicely, at least mine do. Just remember, this is chaser, not a cutter. This will clean up the threads, fix minor issues, but it won't put new threads in.

Works exactly as it should. Re threaded two o2 bungs so far!

Debía corregir la rosca del sensor de oxígeno y con esta pequeña Pieza lo corregí fácilmente, el mecánico quería desmontar el mofle o escape y llevarla a un tornero, no fue necesario ya que con con esta herramienta 🔧 corregi yo solo el problema, muy recomendable y fácil de usar EXCELENTE me ahorre (tiempo dinero y esfuerzo)

Worked very well on my 1999 Harley Road King gas tank thread where the line goes into the tank. If you have an older Harley with the MM FI and need to clean up that thread, this is the tool you need.

Funcionando en un focus 2002, dejo limpia la rosca justo como esperaba!

Tool is not hard enough, threads were messed up from the first hole I cleaned... now I need a thread chaser for my thread chaser... cleaned up the hole nicely but I think when it is no longer usable, I will just make one out of an old O2 sensor using a dremel.