Figure 8: (a) left to right, #2 round diamond bur, tungsten carbide fissure bur, Endo Z bur, Axxcess bur and #2 tungsten carbide round bur, the last two burs (SybronEndo, Orange, CA, USA) have a longer shank and allow better vision when used with magnification.
From: A practical guide to endodontic access cavity preparation in molar teeth