needle bur
A needle bur is a precision dental and industrial cutting instrument characterized by its elongated, needle-like design and fine cutting edges. This specialized rotary tool features a slender, tapered shape with helical flutes that extend along its length, enabling precise material removal in confined spaces. Manufactured from high-grade carbide or diamond-coated materials, needle burs are engineered to maintain sharpness and durability through extended use. The distinctive design incorporates a unique cutting geometry that allows for efficient material removal while minimizing heat generation during operation. These tools typically range from 0.4mm to 2.0mm in diameter and are available in various lengths to accommodate different applications. The needle bur's specialized construction enables it to create precise, clean cuts in materials ranging from metals and composites to dental materials and ceramics. Its small diameter and extended reach make it particularly valuable for intricate work in hard-to-access areas, while its precision-engineered cutting edges ensure smooth, controlled material removal without causing damage to surrounding surfaces.