On 13/03/2020 08:38, PeterC wrote:
On Fri, 13 Mar 2020 00:58:44 -0700 (PDT), harry wrote:

On Thursday, 12 March 2020 23:52:31 UTC, Fredxx wrote:
On 12/03/2020 20:06:57, ARW wrote:
On 12/03/2020 19:56, Andy Burns wrote:
https://youtu.be/PXgoGERgL4g?t=337

Any ideas why is he using metal capping?

Why not? It's very good protection against standard or hammer drills.

IME any sort of drill will go straight through metal capping as if it wasn't there.

Well, there is a delay but, more importantly, there's clear warning whne the
drill hits the metal (based on 70 yo capping that's probably thicker than
modern stuff).


Don't you need 3mm steel to protect meter tails if, for example a
Wylex metal box in the party wall was origianl (and cant be
removed) but a new CU is located above, to the side, up and over
to the opposite wall, or wherever.