Soldering rework systems include all the components required for soldering and de-soldering including a hot air device designed to melt solder, and specialized handpieces designed for picking and placing small objects, touchups, or similar actions. Often used to work on surface-mount devices (SMDs), these systems can assist in mounting and soldering electronic components such as printed circuit boards (PCBs), integrated circuits, resistors, capacitors, ball grid arrays, and more. Ellsworth Adhesives supplies soldering rework systems and power supplies from OK International (OKi).