A strongly constructed, hand-held, surgical instrument designed to separate a bone into two parts through a cutting action. It typically consists of an instrument having one or two sharp robust blades that close over the bone and cut it. It is available in various designs: 1) a pliers-like design with elongated blades, or 2) twin angled blades attached to strong, sprung (self-opening), pivoted or multi-pivoted handles; that, when squeezed together, close the blades so that they cut entirely through the bone. Also known as bone shears, it is mainly used in orthopaedic surgical procedures and oral surgery. This is a reusable device.