The S6850 will be discontinued soon and it will be replaced by the DIAO KP6850 The S6850 is a chamfer long shaped coarse (green) grit bur used for crown preparation.
Crown Preparation | S-Diamonds® In dental surgery, the primary preparation of crown cores is one of the most time consuming steps during treatment. The use of S-Diamonds is highly recommended for increased efficiency. Their particular advantages make structured diamond instruments especially suitable for a gentle treatment.