WW-6 from Weiler is a 8" diameter crimped round filament Nylox Wheel featuring a composite hub. The face width is 1" with a 2" arbor. The silicon carbide filament size is .040 in and 120 grit.
Filament trim length is 2-1/4"
The MOS for the WW-6 is 4,000 RPM.