Summary

So if your looking for this bushing then im assuming you know its dangerous. Anyways, circular saw blades have a 5/8 arbor and our echo has a metric 10 on it. Here is a bushing to take that death wobble out of your plant killing spree.

Ill make a bolt protector in the near future when i figure it out. Good luck and you assume all risk. I mean your using a saw blade on a weed wacker, sooooo.