FREE SHIP (United States) The arbor of them is 5/8″-11 Female Thread. This package carries (a)-(b): (a) 1 Piece of Diamond V10 Router Bit for 10mm or 3/8″ Thick or High stone concrete travertine granite marble ceramic edge to do Full Shape Bullnose. (b) 1 Piece of 10mm / 3/8″ Diameter Diamond Vacuum Brazed Coarse Finger Bit / Milling Bit / Zero tolerance grinding drum for stone granite marble porcelain ceramic sink hole. Enlarge, shape and/or round bevel existing holes in Porcelain, Hard Ceramic, marble and granite.

FREE SHIP (United States) Item: Vacuum Brazed Diamond finger bits Milling bits for tile, stone, porcelain, ceramic, granite, marble countertop sink hole cut and polish Quantity: 9 Pieces of 25mm Diameter Specification: 25MM Diameter, 5/8-11 female thread arbor, Grit #50/60 Application: 1. Enlarge, shape and/or round bevel existing holes in Porcelain, Hard Ceramic, marble and granite2. Also available to make a hole directly, but not recommend to do this job. 3. Used on angle grinder Feature: 1. Vacuum brazed technology provide high efficientworking performance 2. Grit #50 provide you great finishing 3. Very easy to operate.