Helicopter power line maintenance.
https://www.youtube.com/watch?v=kh8Zu5_0Am0
Previously:
https://www.homemadetools.net/forum/...218#post109858
https://www.homemadetools.net/forum/...486#post104356
https://www.homemadetools.net/forum/...7238#post85318
https://www.homemadetools.net/forum/...3604#post99572
