Published materials
The title lists granite, stone and concrete cutting applications.
CASTLEROCK TOOLS
Diamond turbo cutting blade
A CastleRock BF850-4H 5-inch diamond turbo blade listed for granite, stone and concrete cutting.

The active listing title identifies the CastleRock BF850-4H as a 5-inch diamond turbo blade for granite, stone and concrete cutting.
A second record for the same ASIN publishes hot-pressed sintered construction and dimensions of 5 by .079 inches with a 12 mm segment and 7/8-inch, 20 mm and 5/8-inch arbor references.
The title lists granite, stone and concrete cutting applications.
The same-ASIN description identifies hot-pressed sintered turbo-blade construction.
CastleRock appears explicitly in the active listing title and is preserved without reassigning the item to another brand.

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