Tracks are used to keep something in place, while still being able to move it along a straight line. This can be essential when using power tools for example, dangerous pieces of equipment you need to be able to move, but don’t want moving in your direction.
Also other things can move along a straight line efficiently, like the garage door rollers moving along a track to keep the door stable, but easy to move out of the way.
I'm Joost Nusselder, the founder of Tools Doctor, content marketer, and dad. I love trying out new equipment, and together with my team I've been creating in-depth blog articles since 2016 to help loyal readers with tools & crafting tips.