Approved DAMAS for North America
This is a Type IV alloy which is hard.
Begin with a Dedeco White Flexie Classic Knife-Edge Abrasive Wheel.
Follow with a new or newer Robinson Soft Bristle Brush using medium pressure and Fabulustre Polishing Compound, the type for final buffing of Au, Ag, Pt, Al, Ni, Fe, and Cu, (two tone gold colored label).
Short, worn bristle brushes are not great, in my opinion. Follow that up with a soft felt wheel, light on pressure and light on polish.
This combination works very well at leaving a smooth, high shine.