4.5" HOT SAUCE Flappy Cup Wheel are great for smooth grinding on the following materials:  Porcelain, Dekton, Quartz, Marble, Ceramic, Metal and more.
 
Easy on your arms and worry free smooth grinding.  Comes with an adapter to fit most grinders.  5/8"-11 thread.  
 
Add this to your arsenal of tooling to make your life easier!
 
Comes in 100 Grit, 200 Grit, 400 Grit