Are you talking about the circular saw blade or the chain saw attachment?
Well I surely wouldn't think it would be used for the circ blade or anything to do with ground work. Just the chain saw and shears, there might be something else I dunno.
Should I get a circ blade?
I do have a brush cutter, its the 3 bladed one, not like a circ blade. I thought it was a joke til I figured out that you just swing into the stalks instead of trying to saw it. It cut pretty good on the one stroke but will not saw. I wonder if a real circ saw might be better for bigger harder wooded brush. I was using it on 3 inch thick burdock weeds, as long as I swung it would cut it on that stroke but seemed maxed out and I did have to swing it hard where as just sawing is not so hard to do.
I have been aswinging and abashing with the CF extension for years. Some jobs done with bucket truck, I was 360-ing the thing, swinging it til it hits something big enough to stop it then it would gnaw on it for second then swing again. My arms are no stranger to the weight of them.
I think these are the 4stroke motors which are said to have problem but mine is old and runs great. I still have the guard for the weed wacker.
I would like to see some kind of container for it and all its attachments. You could really scare someone whipping something like that out. I had a golf bag but got to heavy and I need to lay the stuff on its side. I was thinking some kind of long cylinder that open like a chest or suitcase. Its been hard even though its only been me but my Kombi system is in great shape and well worn. Being naked and bouncing around the back of the chippah truck was hard to watch but nothing ever broke.