Ball shaped carbide burrs Cylindrical, ball, egg, flame, tree, and cone shape burrs Suitable for making ITE hearing aids Solid Carbide Ball Shape Burrs are now for sale. Cylindrical, ball, egg, flame, tree, and cone shape burrs. Solid Carbide Burrs are used in high speed die grinders to quickly and accurately grind earmold. Available in single, bulk and wholesale quantities.Available Diameter ...