If you are just doing a small amount of chasing and want to minimise mess I would avoid a grinder if possible (unless you have one with good dust extraction). Score the edges of the chase with a stanley knife as deep as you can, this should help give neater edges to the chase. Swiss cheese (drill loads of holes) the centre of the chase with a drill, mark the depth of the chase on the drill bit with a bit of tape so you don't go deeper than you need to. Depending on what your walls are made of you might find that you don't need to use the SDS chisel as some blockwork and bricks are quite easy to chisel. A Hammer and a bolster might be all you need, it will still make a mess, but should avoid the fine dust a grinder will make.
Dave
Dave
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Grr, I missed out on some really cheap Record 6" clamps and ultra cheap old combination square and some Marples chisels in the last week on ebay from getting bored in the last 15 minutes of the auction and forgetting about it lol. I really need to look into one of them auction sniper apps.
, doubt i'll ever get them for that price again. The combination square went for like £2 odd, really gutted about that one.
. I should really join all the buy and sells near me as people seem to sell a lot cheaper on FB than ebay.