Drilling into a concealed cable is always a nasty shock – and it’s seriously dangerous if the wire is live. Electrocution can result when a live cable is damaged and makes contact with the drill, ...

Voltage tester, tick-tracer, glow-tip, non-contact voltage tester... whatever. Same thing. I call it a voltage sniffer, but the technical name for this device is a capacitive voltage sensor. That's a ...