Drilling sandstone - Help

[bunkernut]

what kind of drill would you use to drill holes for spotlights in indian sandstone

[Dave_L]

Recessed lamps, set into the flags, yeah?

Having never drilled into I.S - but I'd probably drill a pilot hole centrally then use a core drill to make the large hole.

Probably wise to try out on a bit of waste to start with.

[Tony McC]

Dave's right: pilot hole then a core drill, which you'll probably have to hire.

[Dave_L]

....and don't rush it. Try it out on a bit of waste first.

[lutonlagerlout]

i had to hire a 250mm dia diamond core cutter for some fancy german paving lights and it was bleedin expensive,£150 a day and £50 a mm for wear on the core,it was all set on like a big pillar attachment,very very slow even with water
cheers LLL

[Tony McC]

Have you ever noticed that, even if you've only made one cut, there's always 3mm of wear on a diamond blade when you return it to the hire centre? Robbing abstrads!

[lutonlagerlout]

well i expect a 250 core has about 400mm of diamond on it,its weird because the ts400 with a diamond blade wizzes through sandstone ,maybe it the difference in revs per minute
regards LLL

[bunkernut]

thanx, a daimond tipped core drill bit from b&q done the job no problem, didnt even need the pilot hole.

[lutonlagerlout]

what diameter was the core?
and how much was it?
cheers LLL

[Dave_L]

Trouble sleeping, Tone?

[lutonlagerlout]

sleep is for the weak dave :;):
LLL

[mouldmaker]

sleep is for the weak dave :;):
LLL

Zzzzzzzzz...

[lutonlagerlout]

nah i did the fatal,had my dinner and after working for 15 straight days, sometimes till 8 at night then promptly fell asleep
this was at 7.30 pm
then woke up fresh as a daisy at 2 a.m.
such is life
LLL