Sorry for the stone question on the woodworking forum.
I want to use this piece of bluestone for a vanity I made.
Harbor Freight has a multi material carbine cutter. Think that would do the trick?
Side note: all the lumber used was from an old door from my shop’s slop closet and an old joist. No the door wasn’t painted. Just finished demoing my bathroom and really questioning my executive function.
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I've worked with stone for 25+ years and seriously doubt that a carbide bit will work. You are going to need a diamond hole saw for this. Also will need to have a steady trickle of water to clear the stone slurry and to keep the bit from overheating. Work very slowly..... I get most of my stone tools from Gran Quartz.
Best of luck
Bluestone can refer to either a sandstone or a limestone depending on where you are or where it's from. Sandstone is more common and I'm betting that is what you have. Neither is particularly hard. While,clearly, a diamond saw will be better, a carbide blade might just do it. If money matters and this is a one off situation Harbor Freights carbide hole saw could be the answer or maybe a Lenox,which might be better quality. You might want more than one. Another solution is take your slab to a stone guy or maybe a monument maker. When I ve wanted to do something tricky or it would require something expensive that I'll never need again I've done that. Once on a very big project I was involved in the very good stone mason was over his head on a giant bread oven and we imported a guy,well, the master mason he learned from, from France! You don't have to do everything yourself!
Just one project, I'd either see if a countertop company will cut it for you or rent a core drill with a water hookup.
Thanks guys. Picked up a diamond bit. Unlikely to be the last time I need to do this.
Typically I have my clients’ counters done by the stoneyard, keeping this one diy!