Tim Hunkin’s 2023 series exploring components for designers and builders continues by exploring the many different ways of making holes in things: drills, hole saws, punches, pile drivers, and tools and tricks for getting it right, including hand drills, drill presses, lathes and milling machines, and centre punches. Also, what to do when you drill a hole in the wrong place and discover there’s no “Undo” command in the real world.