Check the listing for details. 1-3/8" stone ceramic porcelain quartz concrete core drill bit hole saw cutter. Condition: New. Listed at 42.89 USD. FREE SHIP (United States)Important Remind:The TWO PIECES 1 3/8 Inch / 35mm Diameter core bit's arbor is 5/8"-11 female Thread.NOT M14 Thread. This pack carries (a)-(b): (a) 1 Piece of 1-3/8" Diamond core drill bit for marble ceramic porcelain quartz granite hole cut. (5/8"-11 Feale Thread arbor). (b) 1 Piece of Premium Professional grade 1 3/8" or 35mm diameter Diamond Core Bit Hole Saw with 9 mm segment height, 3.0 mm segment thickness, 4 1/5" overall Height and arbor 5/8" 11 (Made with Premium Diamond) works great on GRANITE, Marble, Concrete, Tiles, stone etc.Specifications- Professional Grade 1 3/8" or 35mm Diameter Wet or Dry diamond drill bit hole saw core drill bit - Drills/Cores through Concrete, Granite, Masonry, Stone, Marble - Segment Height 9 MM, Width 16 mm, Thick 3.0 mm - Optimal RPM 900 - Arbor 5/8" 11 T