Friedman Bone Rongeur, 5.5", 30 Degrees. The HSB Friedman Bone Rongeur, measuring 5.5 inches with a 30-degree angled tip, is designed for effectively trimming and recontouring alveolar bone while facilitating the removal of gross tissue. Made from high-quality AISI 410 material, this end-cutting rongeur combines durability with precision, making it an essential instrument for dental professionals.