Foley-Belsaw 800 Grit Diamond Wheel for Twice as Sharp and 327 Dropship #3570180 is a Type 4A2P

#3570180 is a Type 4A2P Diamond Grit Wheel for Face

The DiamondVee uses DMT's fine grit

Model 328 Rotary Sewing Blades Sharpening Instructional video gives you all the details

Ookami Gold PLUS

Foley-Belsaw 800 Grit Diamond Wheel for Twice as Sharp and 327 Dropship #3570180 is a Type 4A2PDiamond Sharpening Wheel 800 Grit for Twice As Sharp and 327 Machines This diamond wheel creates smooth, sharp edges on barber beauty shears, fine scissors, and carbide inserted medical scissors. 5" diameter x 1 2" width x 1 2" arbor, Diamond, 800 grit. For use with the Ookami Gold, Ookami Gold PLUS, Twice as Sharp 327 Complete System, and Complete PLUS packages. Made in the USA by Foley Belsaw Sharpening.