
HP Diamond Burs for Labs
All burs are with HP shank, 3/32”, shank diameter 2.35mm. Fit to electric micromotor.
| 
             Color ring  | 
            
             Grit  | 
            
             Usage  | 
        |
| 
             Black  | 
            
             Super coarse  | 
            
             70mesh  | 
            
             Fast aggressive on porcelain and some kind of metals.   For prepping metal and ceramic  | 
        
| 
             Green  | 
            
             Coarse  | 
            
             100mesh  | 
            
             Aggressive on ceramic. Used on most alloys  | 
        
| 
             Blue  | 
            
             Medium  | 
            
             170mesh  | 
            
             Multi-purpose bur. For metals and porcelain   combinations  | 
        
| 
             Red  | 
            
             Fine  | 
            
             325mesh  | 
            
             For final shaping. Good for trimming metal margin   before porcelain.  | 
        
| 
             Yellow  | 
            
             Extra fine  | 
            
             600mesh  | 
            
             Pre-polish.   Good for final adjustment after a glaze bake. Easy to polish glaze  | 
        





























         
		        
