Silca T-Ratched + Ti Torque Kit
If you run a carbon post or stem it is not a bad idea to carry a torque tool to avoid any damage to your components. See below from Silca:
T-Ratchet + T-Torque combines two highly versatile tools to form a powerful force for good. Roughly 70%* of damage to high end carbon components such as seat posts, handlebars and stems happen due to making adjustments without using torque. This problem is further accentuated by the fact that the majority of adjustments made without torque occur on the roadside or trailside. This makes sense, as you might set up your new ride or component at home using your shop torque tool, or a pre-set torque tool, but need to raise/lower your saddle, or adjust the tilt of your bars out on the road. Too low of a torque and the component will slip which is both unsafe and can cause damage; too high a torque and you can crush the component and damage it beyond repair.