Remind: The drum and cup arbor is 5/8-11 Thread. This package carries (a)-(b)." x 1-5/8" Zero Tolerance (Metal-Filled). Diamond Drum Wheel (5/8-11 thread arbor). Do very good job for cutting of the stone, concrete sink hole. It is 1-5/8 height, it gives more room / space for working on both 1.25 Inch and 0.75 Inch sink cutouts. (b) 1 Piece of 5" / 5 Inch Diamond Super Wide Segment Diamond Grinding cup wheel for stone concrete (5/8"-11 Thread arbor). The item "3 Diamond Zero Tolerance Drum 5 inch Coarse Grinding Turbo Cup Wheel granite" is in sale since Saturday, June 25, 2016. This item is in the category "Business & Industrial\Building Materials & Supplies\Marble, Tile & Stone". The seller is "asia_pacific_construction" and is located in Gig Harbor, Washington. This item can be shipped worldwide.