A hole is nothing. Or more precisely, it’s the absence of something—wood, metal, concrete, or any number of different materials. Since holes are nothing, why do we care about them and how to make them ...

Hargreaves explains the best way to use a hole saw. “Slow the drill as the diameter increases, keep the saw square, and clear dust regularly to avoid burning.” He adds, “Tape the face, clamp a backer, ...