Tumble dryer vent

[amatureleccy]

I need to knock a whole through a cavity wall for a tumble dryer vent.

Cant anyone advise what the neatest way of doing this job would be.

A friend mentioned that I should hire a powerful drill with a special drill bit that would cut a neater hole that a chisel'n hammer. Does anyone know what this bit is called and can they be hired.

The wall is brick exterior, cavity then block on the inside.

Many thanks.

 

[breezer]

yes, they are called "diamond core cutters" you can get them in all sizes so when hiring you can just hire the one for the t.d vent pipe size

i am not saying buy one, but to see what i mean see here for an example