Application: Beveled margin preparation: Designed to prepare a parallel axial wall and a 45º gingival finish line, suitable for metal or ceramic margins. 

Diamond bur with perfectly rounded shank made of one piece stainless steel. And consists of a multi-layered diamond grit evenly distributed around the shank. 

Advantages: 

1. Don't bend or break under pressure at high speed. 
   
2. No vibration trauma's and 
3. last much longer.