granite anchors for cabinet top

Have small counter top of 3/4" granite. Want to attach from underneath but do not have set of granite "tools". Thinking of buying a 1/2" granite capable drill bite, boring partially into underside of granite, then use epoxy to glue a barrle nut which I could then bolt into from below.
Q: Is that sane and does it work?
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Granite Counter Top ? The norm is that the counter/cabinets have a finished top of plywood (ours was 3/4") and the granite is placed on that after a liberal application of silicone in several good sized 'blobs' across the whole surface. Our 3/4" granite had the edge built up so that the reveal on the sided/ends was 1 1/2" and that overhang covers over the edge of the plywood 'underlay'- No drilling, screwing etc

Thinking of buying a 1/2" granite capable drill bite, boring partially into underside of

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Don't bother. Silicone will hold it in place just fine. Just make sure all of your cabinets are level.
If you have a dishwasher get the brackets to side-mount it into the cabinets.
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Slab is only 40" by 16" but application is as a table saw surface not as a countertop. There will be more vibration and shearing forces versus just setting something on it as you would in a kitchen. Looks like a hole filled with JB Weld to secure the insert will work based on other web sites.
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