Drilling Concrete: Jigs, Anchors, and Fidelity
Daniel wrote in with two questions that turn out to be one problem: drilling accurate holes in concrete, and matching anchors to hardware. We dig into why bits deflect off aggregate in concrete but follow the grain in wood, why a weaker cordless drill makes lateral drift worse (not better), and how the pilot-hole and steering techniques are mutually exclusive. Then we look at what actually exists for wall-capable drill guides — a maker category, not a tool brand category, where the trick is rigid wall gripping rather than soft sealing. Finally, the other end of the same operation: the…
The skinny
The skinny isn't ready yet — notes appear once the transcript is processed.