Check these torque sockets
We use these at work for noob installers. They always overtorque this fiberglass mast, so we give them one of these torque sockets. They act like an extension essentially, but click when the predefined torque has been met. unlike a torque wrench, they will not continue to spin after the set torque has been met.
They work great, you can set them to any torque, and unlike torque wrenches they are not shock/vibration sensitive.