First, the classic hand shear. This is what happens when you drop out of Samurai school:
That's a shearing knife. Available on Amazon here for $77: https://www.amazon.com/M-Leonard-She...dp/B0034039AQ/ . Looks like this:
3-minute GIF source video:
Then we have a selection of power tools and implements. Essentially these try to address two issues with shearing trees: the danger of overhead cutting, and worker fatigue brought on by trimming numerous trees.
An interesting shearing tool called SAJE. Looks like this:
7:23 video of the SAJE in action:
Another option: The Easy Lift Harness. Not so sure about this one, but if you're going to do overhead cutting with a trimmer anyway, I guess it is safer. 3:35 video of the Easy Lift in action:
There are also some gems on display in this 4:01 video of the 2011 meeting of the South Carolina Christmas Tree Association:
1:04 - Riding Mower Yule Trimmer
2:20 - Yule Trimmer
More:
EasyLiftHarness.com
SteelesSAJE.com
Previously:
Trimming trees around power lines GIF
sketchy hedge trimmer
Ducker branch and hedge cutter
Giant hedge cutter made from WWII AEC Matador
Bush trimming machine GIF
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