Botchery, line tracing & core drilling

My apologies, this one is a bit thrown together; we hadn't planned to be filming anything. Still, some of the testing is shown, plus use of the line tracer and one of the easiest core drilling jobs I've ever undertaken! Sorry too for the pap audio, I've normalised it as much as my video editor will allow. A couple of affiliate links are below for the line tracer and Armeg Switchblade torque screwdriver: Line tracer*: https://amzn.to/2KBEXCn Armeg switchblade: https://amzn.to/2DTgtAL *This isn't the line tracer I use as it's no longer manufactured. I have no experience of this model I've linked to, but it shows the kind of kit I'm using, and if mine died then this is what I'd probably purchase to replace it.