Buchanan 3191-A Crimping Tool For Electrical Connectors And Terminals

The Buchanan 11210 MS3191-A Hand Crimp Tool is a mil-spec, cycle-controlled, ratchet-style crimping instrument built for terminating electrical connectors and terminals to the MS3191 family. Weighing about 10 ounces, this compact hand crimper uses a calibrated cycle to deliver repeatable crimps and prevent over-crimping, a hallmark of the 3191-A variant. Originating in the military-standard MS3191 tooling lineage dating to the 1960s, Buchanan's MS3191-A tool remains a recognized option for durable, field- and shop-verified terminations and is commonly cataloged as the 11210 model. The tool is frequently listed as the Buchanan 11210 Hand Crimper (MS3191-A), reflecting its role as a precise, calibrated crimp tool used with MS-style contacts and other Buchanan terminals in aerospace, defense, and other high-reliability wiring applications.