Hydraulic Tree Shears

hydraulic
Of or relating to the science of hydraulics
Denoting, relating to, or operated by a liquid moving in a confined space under pressure
moved or operated or effected by liquid (water or oil); "hydraulic erosion"; "hydraulic brakes"
(hydraulically) in a hydraulic manner; "the block is then tested hydraulically to its full design test pressure on each stream separately"
(of cement) Hardening under water
of or relating to the study of hydraulics; "hydraulic engineer"

shears
large scissors with strong blades
Glassmakers scissors that are used for the cutting, trimming and shaping of hot glass.  Usually very primitive in design with heavy gage steel.
A cutting instrument in which two blades move past each other, like scissors but typically larger
The Shears (Hada plebeja) is a moth of the family Noctuidae. It is found in Europe.

tree
a figure that branches from a single root; "genealogical tree"
(in general use) Any bush, shrub, or herbaceous plant with a tall erect stem, e.g., a banana plant
a tall perennial woody plant having a main trunk and branches forming a distinct elevated crown; includes both gymnosperms and angiosperms
corner: force a person or an animal into a position from which he cannot escape
A woody perennial plant, typically having a single stem or trunk growing to a considerable height and bearing lateral branches at some distance from the ground
A wooden structure or part of a structure