Type 852: Gingival curettage, cavity preparation with cast fillings Creates bevel edges.
Type 858: Crown preparation(tangential) Only for all-cast crowns with minimal space available.
Type 859: Crown preparation (tangential), trimming of very long teeth Marginal seals causes problems.
Used to prepare the crown periphery during the conformation of the proximal surfaces. It’s so fine that it does not damage the adjacent tooth. The varying lengths are fantastic for easy removal of interproximal excess flash, smoothing and refining of the facial and lingual surfaces.