• 7PCS Dry Diamond Drill Bits Set, Diamond Core Drill Bits for Tile Ceramic Marble Porcelain Stone Glass Hard Materials (not for Wood) Round Shank 1/4, 5/16, 3/8, 1/2, 9/16 inch. KWD 5.500
• Diamond Finger Milling Bits, 34 Inch 20mm Dry Core Drill Bit for Enlarging Shaping Existing Holes of Porcelain Tile Ceramic Marble Granite Countertop Diamond Hole Saw with 5811 Thread KWD 4.500
• Larouoba 10Pcs 6mm Dry Diamond Drill Bits Set, 1/4 Black Diamond Core Drill Bits Round Shank for Tile Ceramic Marble Porcelain Stone Glass(not for Wood) … KWD 11
• Larouoba 8pc Diamond Drill Bit, Masonry Drill Bits Set for Porcelain Tile Ceramic Stone Granite Marble Hex Shank Diamond Hole Saw Drill Bit with Size 3/16" to 5/8" (Black) KWD 11