Diamond Stone Coring Bits – 5/8-11 Thread Sizes 3/16″–7/8″
SureCore Diamond Stone Coring Bits are built for pros who need precision in hard surfaces. Designed with a 5/8-11 threaded shank, these bits run on standard angle grinders and polishers without adapters.
Ideal for countertop shops, tile setters, masons, plumbers, and electricians, they deliver smooth, chip-free holes in granite, marble, quartz, porcelain, ceramic, and stone veneer.
Key Features:
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Direct-fit 5/8-11 thread
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Diamond crown cuts clean, reduces chip-out
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Available in 3/16″ through 7/8″ diameters
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Perfect for anchors, fixtures, and utility pass-throughs
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Professional-grade durability for repetitive use
Applications:
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Countertop fabrication – faucet and accessory holes
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Tile and stone installs – anchors and fasteners
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Electrical and plumbing – conduit, wiring, and water line penetrations
Choose your diameter from the dropdown to get the right fit for your job.
Variations (Dropdown Options with Part Numbers)
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3/16″ (0.1875) – SKU CB-ZUA316P
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1/4″ (0.2500) – SKU CB-ZUA416P
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5/16″ (0.3125) – SKU CB-ZUA516P
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3/8″ (0.3750) – SKU CB-ZUA616P
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7/16″ (0.4375) – SKU CB-ZUA716P
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1/2″ (0.5000) – SKU CB-ZUA816P
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9/16″ (0.5625) – SKU CB-ZUA916P
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5/8″ (0.6250) – SKU CB-ZUA1016P
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3/4″ (0.7500) – SKU CB-ZUA1216P
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7/8″ (0.8750) – SKU CB-ZUA1416P





