Fairview Microwave's SMA torque wrench, ST-SMA9, is a 5/16 bit screwdriver type that is preset to 5 in-lbs and designed to use with SMA connectors. This screwdriver type SMA torque wrench allows accurate mating force when assembling and disassembling a variety of RF coaxial connectors. The unique feature of screwdriver type wrenches is that they will internally slip once the preset torque value is achieved, eliminating any chance of over tightening the coupling nut on the connector. Screwdriver type torque wrenches are useful for hard to reach connectors. Fairview Microwave's screwdriver type SMA torque wrenches are in-stock and also available for a wide variety of other RF connectors, all of which ship the same day. These RF torque wrenches are calibrated at time of manufacture in compliance with ANSI/NCSL Z540 or other internationally recognized standard.