If you elect to use Tapcon™ anchors or a similar product, they usually include a bit with the package, as the sizing is precise. You can drill into brick and use lead anchors as advised by fhqwhgads and if the hole becomes sloppy, tamp in a piece of lead wool, available at plumbing supply houses.
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There ain't nothin' more powerful than the odor of mendacity -Big Daddy
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