The door hinge positioning jig may seem like an unnecessary expense to many people, but it will pay for itself over time by saving you money on wasted materials and labor costs associated with improperly installed components. One way to justify the cost of this tool is to consider how much more expensive it would be if you were forced to hire someone else do it for you especially since they’re unlikely to do a better job than you can. What is a door hinge jig? A door hinge positioning jig is...