Kellenberger Step & Profile 10.5mm Wide Dressing Grain Diamond Plate / ID: BTK-33

Kellenberger form or step dressing suggest for 12" diameter 2"width wheels. 10 mm x 12mm hand set grains.
W Tungsten hot-pressed bond.
Side mounted plate is set to 5mm x 10.5mm x 19mm blade and set at 0 degree angle in to 3/8" diameter x 1-3/4 OAL long shank.
Suggestions for Wheel grit size:
Part Code. Wheel grit size.
BTK-33 80-100
BTK-35. 60-80
BTK-37. 35-50