Cornish Stone Wall Drilling

[BriskOmnivore50]

Anyone had any experience with Cornish stone wall 470mm. I need to cut holes in it for a new kitchen waste and an extractor fan. Struggled just getting a 15mm pipe through as stone kept falling inside and blocking the hole. Any tips or advice would be greatly appreciated.

 

[ShaunCorbs]

Rig mounted core drill and some 2” waste pipe for the 11/2 kitchen waste (use the 2” as a sleeve)

as for the kitchen ext what size is your unit some are 110mm others 51/4 etc

 

[BriskOmnivore50]

Rig mounted core drill and some 2” waste pipe for the 11/2 kitchen waste (use the 2” as a sleeve)

as for the kitchen ext what size is your unit some are 110mm others 51/4 etc

What do you mean by rig mounted?

 

[ShaunCorbs]

Something like this

you can hire them from most decent hire shops