That's the longest bar I've ever heard of.  I'd sure hate to file all those teeth!  Longest I've cut is a 48" double-ended bar which, contrary to the comments, works fine.  Once, I even had a Husqvarna 372 on one end and a Stihl 066 on the other and chewed our way through  a huge burr oak log.  As long as the operators pay attention, it works.  Thanks for posting the video!

That's the longest bar I've ever heard of.  I'd sure hate to file all those teeth!  Longest I've cut is a 48" double-ended bar which, contrary to the comments, works fine.  Once, I even had a Husqvarna 372 on one end and a Stihl 066 on the other and chewed our way through  a huge burr oak log.  As long as the operators pay attention, it works.  Thanks for posting the video!

I'm just picturing it; both saws on the same bar!!!