Jonard CSR-250 - Compact Cable Slit & Ring Tool, 0.125" - 0.250" Cable Diameter
Designed to slit and ring fiber optic cables from 0.125" - 0.250" (3.3 mm - 6.4 mm) in diameter, this cable slit and ring tool is perfect for slitting and ringing cables, buffer tubes, and jackets on fiber optic cables.