I needing to drill over a hundred 1¼" holes in granite counter tops and was wondering what the best way? Wet, dry? What bit to use? How many holes will a bit drill? The granite is 1¼" thick.
The granite guys i use all use angle grinders with what ever bit sizes they use. they all use a wet sponge to keep area wet. Its not the way i would do it but these guys do numerous counters a day and it seems to work. not the most neatest holes but you never see them anyway one what ever is installed.I needing to drill over a hundred 1¼" holes in granite counter tops and was wondering what the best way? Wet, dry? What bit to use? How many holes will a bit drill? The granite is 1¼" thick.
I'm guessing you saw the response there:no:I'm thinking that Bosch should do ok...
:laughing:
No these holes are for the counter top plumbing. A drill press is something I need to look into. Something that can self drill while I'm doing something else would be great. This will be production work at PW$.Also if the hole needs to be dead square maybe a suction drill press.
The few I've seen done were with a diamond hole saw on an angle grinder, but they did it dry. No idea how many holes one's good for.The granite guys i use all use angle grinders with what ever bit sizes they use. they all use a wet sponge to keep area wet.
It's many kitchens in a high rise building. This is a first time setting the counter top. It will go right on top of the cabinets with silicon holding them down. We will cut it to length and drill the holes:no: I'm thinking it will be heavy:sad:The few I've seen done were with a diamond hole saw on an angle grinder, but they did it dry. No idea how many holes one's good for.
That ought to be a fun day, Randy.
They normally cut the holes outside before they put them on the cabinets. I'm sure they would use dry ones inside.Tinstaafl said:The few I've seen done were with a diamond hole saw on an angle grinder, but they did it dry. No idea how many holes one's good for. That ought to be a fun day, Randy.
I keep a 5/8" lennox diamond hole saws in my drill kit for mounting TV's to granite and porcelain fire places. I've replaced it twice and it's drilled dozens of holes. But it seems to me that you either get 2 dry holes or 200 wet.My granite guy uses a hole saw on angle grinder dry, and vacuum cleaner for indoor cutting.
I guess with that many holes, you have to give the blade a little time to cool off between cuts, if you want it to last.
Mine doesn't want to drill till it is in place and well supported..They normally cut the holes outside before they put them on the cabinets. I'm sure they would use dry ones inside.
the angle grinders they use are really 7" less than 3,000 rpm angle polisher/sanders, much lower rpm than the typical 4-5" 12,000 rpm angle grinders we are used to seeing.I would think the angle grinder would have to be variable speed to slow it down...
My granite installers use the same set up.. two guys one drilling, one with a squirt bottle of water, and a shop vac..
They use these metal box sections that keep it solid until they have set it in place. Then once shimmed and joined they remove the box sections.TimelessQuality said:Mine doesn't want to drill till it is in place and well supported.. I wouldn't drill a hole next to a sink cut out, then move it around.