Oxygen Sensor Thread Chaser Tool

Thread chaser arrived well packaged on time. We used the chaser to clear the threads on a 2024 Honda Odyssey trailer hitch hole in the frame. Worked well. Success!

This Alltooetools Spark Plug Thread Chaser got me out of a jam. I installed a Wideband O2 stainless bung in my exhaust. Not being a professional TIG welder I accidentally welded at a higher amperage then I actually needed. So although the bung was installed well I botched the threads a bit on the stainless bung. So I used the 18mm tap from the Alltooetools Spark Plug Thread Chaser set and using a bit of oil on the threads the tap cleaned up the threads nicely. The taps are pretty well made and I never felt like the tap was going to break/snap like cheaper taps sometimes do. It is a good value and if you do any automotive work then this would be handy to have in your tool box. The sizes included are; M10 x 1.0, M12 x 1.25, M14 x 1.5, and M18 x 1.5.

Affordable and it works. Hex size is metric and would be better if it accepted a 13/16" standard spark plug socket. (I belt sanded the hex flats to enable use of a 13/16" socket.) Tool worked well on aluminum spark plug threads. When used properly and lubricated, this tool does not remove critical thread material. It's not a tap, it's a thread chaser. If not forced, it will clean and restore threads that still have substance and integrity.

haven't used these yet but appear to be good quality.

Works great good tool to have

I bought this to use on a catalytic converter I bought, both rear O2 sensor bungs were over heated and warped the threads from the factory, the company wanted me to pay to return it and get a new one which would have put me out another $150 shipping plus a 25% restocking fee so I decided to try a thread chaser first, I bought this kit and the day it arrived i threaded the M18 side in it went in 2 threads and stopped i sprayed pb blaster on the threads to lube it and went slowly stopping after 1/4 of a turn and backing it out then going another 1/4 turn every full revolution spraying a bit more pb blaster on it after 15 minutes I was all the way through and the threads were clean again I could hand thread the sensor all the way in like the front two holes and tighten the sensor all the way down the thread chaser itself shows no wear at all unlike a lisle one i tried first from advance auto locally. I would recommend trying this first before going to an exhaust shop if you need to fix threads on an exhaust bung or a spark plug hole. I would also mention the exhaust bung on the catalytic converter is not soft aluminum it's stainless steel.

Was missing the larger piece in my first order 2nd order the threads were damaged. Not happy with these purchases Returning for refunds

This item arrived on time, well packaged, and as described by the vendor, the item is holding up to its promise.

Worked but the steel is very soft. Would very likely fail in an iron head. Worked ok on my aluminum head. If it was tapered more it would be better.