Long, conic burs with non-active points.
Its function is to enlarge the entrance to the root canal so that the relief of the lower part would stay undamaged and the entrance of the root canal would be clear and accessible.
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.