Twin plate grain dressing last twice as long dresses twice as fast.
Plates 10mm x 20mm Mounted on the each side of the blade.
6.3mm x 22mm x 19mm blade is set at 0 degree angle in to 7/16” diameter x 1” with four flats shank.
Wheel grit size suggest:
Part Code, Wheel grit size
BT-259. 50-60
BT-411. 80-100