【Application】: Versatile diamond finger milling bits are designed to enlarge, shape and round bevel existing holes in Porcelain, Hard Ceramic, Granite and Marble and is also suitable to create round side indentation necessary to accommodate pipes or electric wire lines. You can use our milling finger bit to expand existing holes to different sizes or shapes, no need to purchase several core drill bits. Great for granite, porcelain,ceramic or marble countertops, bathroom tiles.
【Material】: High hardness and strength. This Vacuum Brazed Diamond finger bits Milling bits are made of premium diamond and durable metal.
【Tips】: With 5/8-Inch-11 arbor, 5/8"-11 thread, used on angle grinder,can't drill or make holes and be designed to shape and enlarge existing holes.Machine: any Standard Grinder, and can be used with or without water.