ST-SMA9 is a fixed torque wrench in screwdriver type designed for accurate mating force when assembling and disassembling SMA RF coaxial connectors. The wrench features a 5/16 inch hex bit preset to 5 in-lbs (0.57 Nm) with a torque accuracy of ±4%, and internally slips once the preset torque value is achieved to eliminate over-tightening. With a length of 7 inches (177.8 mm), handle diameter of 1.01 inches (25.65 mm), and weight of 0.479 lbs (217.27 g), the screwdriver type design is particularly useful for hard-to-reach connectors. The unit is calibrated at time of manufacture in compliance with ANSI/NCSL Z540 standards and is ideal for lab environments, production assembly, field installation, and any application requiring accurate torque control while preventing connector damage.