10pcs 6mm Diamond Drilling Bit Round Shank Hole Opener for Marble Ceramic Tile

12pcs/box Diamond Core Drilling Bit Set Triangle Shank Hole Saw Cutter for Tile. Diamond Hole Saw Cutter 11pcs/box Drill Bit M14 Grinder for Tile Ceramic Marble. M14 Diamond Drill Bit for Porcelian Tile Marble 6-110mm 12pc Adapter Chamfer Bit.

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