What is the best tool to cut off a piece of #0000 insulated copper cable?

Using a hacksaw is the best choice for cutting off a piece of #0000 insulated copper cable because it is specifically designed to cut through tough materials, including metals and thick insulation. The serrated edge of a hacksaw allows it to make clean cuts without damaging the structural integrity of the copper wire or the insulation, which is essential when dealing with electrical components.

While other tools may be useful for certain tasks, they are not suited for this particular job. A wire stripper is designed primarily for removing insulation from wires rather than cutting through them. Scissors, while they can cut softer materials, lack the strength and precision needed for thicker materials like copper cable. A utility knife is generally intended for cutting softer items and can also be imprecise when it comes to thicker cables, potentially causing fraying or damage rather than a clean cut. Thus, the hacksaw is the most effective tool for safely and efficiently cutting through the #0000 insulated copper cable.