Even shadetree mechanics need a torque wrench. Small engine repairs like changing a spark plug require a torque wrench to ensure you do not over tighten and turn a simple job into an expensive mistake. The torque wrenches I use cost as little as $35. This is my take on why you need a torque wrench in your toolbox.#torquewrench #treztech Ladies First / John Runefelt (www.epidemicsound.com)I'll Be Gone / Nikki Gee (www.epidemicsound.com)