Goldman-Fox knife 8 is a periodontal instrument, with special blade angulations for long bevel incisions. The oval blade shape allows use of inner portion in the retro-molar region. They are round-handled, and come in a variety of tip styles. Goldman Fox 8 Spear Point Periodontal knife is designed for cutting inter-dentally after initial incision severs bucco-lingually. Angulated blade provides for easier handling.