How to Drill a Curved Hole

Even if your carpentry skills aren’t much more than having watched a few episodes of This Old House, it’s still pretty common knowledge that a drill only works in a straight line. Or does it? Woodshop hacker Izzy Swan created a custom rig that can actually drill a curved hole instead.


By welding a drill bit onto the end of a flex shaft attached to a curved rig, Swan’s unorthodox creation allows a standard power drill to bore holes through wood that curve in any direction he needs. It’s useful for running wires and cables through inside corners of a new home under construction, but also because the idea will also melt your brain a little.

[YouTube via Core77]



No electrician or GC would use that complicated of a device for ‘running wires and cables through inside corners of a new home.’ You just drill one hole, then use a square and level to line up the other side, and drill. That thing took out nearly half the area of a 4x4. It would chop a 2x4 stud in half, rendering your corner useless. Neat trick, though. Also, nothing on there is welded.