Where to buy a good, honest 22mm o2 sensor socket?

[b*saint]

I dont want 7/8" o2 sensor socket. The difference between .866 and .875 is big enough to round out really crusty o2 sensor.

[iwantspeed]

go from underneath
spray pb blaster
unplug o2 sensor
use this

http://www.google.com/products/catalog?um=1&hl=en&client=firefox-a&rls=org.mozilla:en-US:official&biw=1280&bih=803&q=22mm+box+wrench&prmdo=1&ie=UTF-8&cid=14756594661049625075&ei=yNxdTNK2N8X_lgeqzsSZCA&sa=X&oi=product_catalog_result&ct=result&resnum=1&ved=0CCEQ8wIwAA#

done

[b*saint]

thats ghetto. I dont use pb blaster. I use an oxy acet torch. And I want to use the right tools i.e. a 22mm o2 sensor socket. The snap on one is .875.