Polesaw
A polesaw is a saw attached to a pole or long handle that is used for pruning tree branches that are beyond arm's reach. A polesaw allows its user to cut high branches without the use of a ladder. Polesaws can be manual or motorized.
A polesaw is common equipment for phone- and powerline workers to prune tree limbs entangled with overhead cables, but the physical nature of the work can be a source of musculoskeletal injuries.