... , Field Service, Telecom, Electronics, Marine, and Circuit Boards!FaSI-B161, the Battery Operated Soldering Iron is a cordless tool that heats ... seconds for soldering up to 160 joints with fully charged batteries and cools to the touch in less than ... with its ergonomic pen-like shape and cordless operation. SI-B161 is great for automotive, field service, telecom, electronics, marine, and light ...