Do I need a torque wrench?

[TommyObar (TObar)]

Z axis set screws are stripped

I had issues stripping bolts on other tools too, so finally bought a torque wrench. LEXIVON Bike Torque Wrench 1/4-Inch Dr. 15-Piece Kit | 72-Tooth Gear, Dual-Direction Click Type 2~26 Nm / 17.7~230.1 in-lb (LX-191) - Amazon.com