Any reportable experience of slotting aged coarse tarmac with an angle grinder? Probably 50mm or so thick on hardcore.
I want to let in some sloping concrete edging blocks to retain loose crushed granite forming our drive and parking area. Perhaps 25mm rising to 50mm.
I have 225mm and 300mm diamond blades or plenty of stone cutting 225mm abrasive discs. The big one has a water feed.
What do the road menders use?