I found this on the Mazda 3 forum:
Here's one place you can get it:
http://www.mazdastuff.com/product.cfm?ProductID=2234
It's an oddball size - no wonder the aftermarket wrenches don't fit tight!

Here's one place you can get it:
http://www.mazdastuff.com/product.cfm?ProductID=2234
It's an oddball size - no wonder the aftermarket wrenches don't fit tight!