On 10/10/2020 13:44, ARW wrote:
On 10/10/2020 12:40, Dave Plowman (News) wrote:
In article ,
Â*Â*Â* nightjar wrote:
On 09/10/2020 17:17, alan_m wrote:

In the past I've used the angle grinder to chase out electrical back
boxes and have created an amazing amount of dust....

You can buy box sinking tools for use with hammer drills that cut the
hole exactly to the right shape for a single or a double gang wall box.

Seen these and do wonder how well they work.


Not much use IMHO.



They seem only to be demonstrated going into light soft aerated concrete
(breeze) blocks



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