And I Weigh 65kg…
It’s only 4cm of the terrazzo as the big bit comes off easily so a 4inch should do it as it’s just the top layer of mortar that needs to come off not the whole lump.
There is an Erbhaur(spelling?) one for £38 which gets loads of good reviews along with a slotted diamond disk for about£16
TBH if somebody would do it for £300 I would happily pay as we have clawed back a fair bit of the budget elsewhere.
And I Weigh 65kg…
It’s only 4cm of the terrazzo as the big bit comes off easily so a 4inch should do it as it’s just the top layer of mortar that needs to come off not the whole lump.