What tools/tool combos worked best from removing upstream O2 sensors?

[j91z28d1]

probably late but back forever ago I worked in a mostly Ford mustang shop and another mechanic had a o2 wrench he got off the tool truck kinda like this.. I borrowed it a few times more than I should have because it just worked well. his had 7/8 on both ends thou

I haven't changed any of them on these trucks though.

Amazon.com

 

[j91z28d1]

if you have an air hammer and it's really stuck. there's a o2 sensor air hammer setup to break it loose too. I hadn't see that before, but the same concept is used for removing the mechanical fans that use one big bolt on that can be crazy hard to get off. they pop those loose easily.