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Posted: Fri May 06, 2011 10:06 am
by nashyboyslim
Hi,
I'm looking for advice on the best way to drill 24mm and 30mm holes in Indian sandstone ( Rainbow finished and honed ) which I then hope to fit LED lights @ 700mm centres around the edge of my patio -
many thanx in advance
Posted: Fri May 06, 2011 10:36 am
by Carberry
Diamond core cutting attachments for drill. Or check out Haggistini's posts on page 16 and 17, he did a fantastic job putting some lights in sandstone.
http://ext.pavingexpert.com/cgi-bin....;st=320
Posted: Fri May 06, 2011 5:41 pm
by local patios and driveway
you do need to show care, the hammer action can snap the stone, go with a thicker stone and drill before laying it
Posted: Fri May 06, 2011 6:31 pm
by haggistini
hire a core cutting set makita do one with smaller cutters not sure of size, have a butchers on the hire sites to find your size. i recently hired one with hammer and core drill setting (rotation only) it takes time but stick with it they should be quite strong slabs with that size hole but i hate cutting them twice ...
Posted: Fri May 06, 2011 9:29 pm
by GB_Groundworks
When using diamond cores do not, I repeat do not use hammer action.
Use plenty of water to keep it cool and just be patient will take a while for each hole
Or if you use a conventional drill bit sit the slab on some sand and go easy
Hilt make some of the best gear but its well out of reach of most diyers but might be able to hire one with the cores
Posted: Sat May 07, 2011 7:17 am
by mickavalon
Take them to a monumental masons, should cost about £10 per hole, maybe less.
Posted: Wed Jun 22, 2011 9:46 am
by T25badger
Just used a 115mm one to cut around soil pipe, works a treat. Need to spray water onto the bit while drilling, I use garden pump sprayer.
Got to cut holes for up-lighters next!
Never had a problem with buying from these guys, quite cheap to considering where they come from. Take between 1 and 2 weeks to arrive tho.
http://richontools.com/index.p....&page=2