Dental Chisel, Periodontal, CO1. Tip width is 3 mm. Our Ochsenbein Periodontal Chisel is designed for reshaping bone. The semi-circular notches are beveled on each side. This chisel is also effective in reflecting flaps or removing secondary palatial flaps. This chisel is used to refine osseous topography in osteotomy and osteoplasty techniques. Our store offers 8 different types of Periodontal Chisels for removing and shaping bone structures. Product code: CO1 or CHCO1