Cutting channel in plastered wall

[Tony_Kent]

Ahead of having a room professionally redecorated next week I want to install a new socket into one of the walls.

It’s plaster on brick, not boarded.

This needs about two metres of channel for the conduit and then a hole for the back box.

What’s the right tool and method for cutting this?

I’ve an angle grinder, SDS drill, circular saw and the normal selection of decent DIY tools but don’t know what’s best to use.

 

[Mottie]

Out of what you have, I’d say the angle grinder with a stone cutting wheel for the channel and then hammer and chisel/bolster for the back box. I always cut my back box holes deeper than the box, fling a dollop of cement/plaster/filler whatever in the hole and set the back box in position at the correct depth and then leave overnight before drilling and screwing.

 

[denso13]

What’s the right tool and method for cutting this?

More importantly remember safe zones for cable runs and the correct depth/protection depending on the existing circuit protection you have.

 

[Rodders53]

To save a big, big dusty mess: don't go angle grinder.

SDS chisel bit will do, I'd have thought. Or plain old bolster and club hammer.

EDIT a multitool may do the job with minimal dust?

 

[Tony_Kent]

Thanks for the suggestions.

I don’t mind buying a new tool if it’s going to help me to get the job done well.

I think I’ll cut the outer lines for the channel with the angle grinder and then try the SDS chisel bit to remove the material.

 

[martygturner]

Personally I would use a sds chasing chisel... eg https://www.amazon.co.uk/Draper-771...sel&nsdOptOutParam=true&qid=1730804260&sr=8-5

Just run give it a sharpen with a grinder every 50ft.