A high quality 4-1/2" Grinding Wheel made by Pferd in Germany. This grinding wheel is designed for stainless & also suitable for steels, cast iron grinding. Made without ferrous, sulphurous or chlorinated fillers. 4-1/2" diameter of wheel. 5/8-11 thread. 1/4" thickness of blade. Depressed center type blade.  Made in Germany.,Established near Cologne, Germany in 1799, the Pferd brand name is synonymous with outstanding premium-quality tools & abrasives. Today, we manufacture more than 7,500 Pferd brand grinding, cutting & surface finishing tools, & a complete range of power & maintenance brushes. Pferd 4-1/2" Stainless Grinding Wheel - 1/4" Thick ~ 5/8-11 Thread