NeoBurrĀ® RA 1/2 Round Operative Carbide Bur by Microcopy (USA). Engineered from a single piece of solid tungsten carbide with a precision latch-type (Right Angle) slow-speed shank and an ultra-fine 0.5 mm spherical cutting head. Specifically designed for delicate, slow-speed caries excavation near the pulp, micro-cavity preparation, conservative pit-and-fissure exploration, and creating micro-retention points with maximum tactile feedback.