Dremel 3322 Silicone Carbide Grinding Stone 3.2mm Pack of 3

Designed to work well on stone, glass, ceramics, porcelain and non-ferrous metals.Specifications:Shank diameter: 3,2 mm Working diameter: 3,2 mmMaximum RPM: 25.000 1/min Pack of 3

Price: 7.95 from Tooled Up