I have a Stihl chainsaw with the ROLLOMATIC E Standard 20" bar:
I picked up a Granberg Clip-N-Trim attachment, to help it go through brush:
The instructions say to bolt the comb to the bar. I see a circle in the bar about 6" from the end. Is it a knockout? Or a grease fitting?
Should I try to drill a hole through? I've heard that it's really hard, because the bars are made of hardened steel. Where would the hole go? I don't want to interfere with the nose sprocket, obviously. Or maybe I should find an alternate bar, just for this purpose.