The Jonard Tools CSR-1575 Cable Slit & Ring Tool features an easily adjustable blade depth and a convenient spring-loaded design for effortless operation. Its reversible V block can securely hold cables ranging from 1.2 mm to 7.5 mm in diameter, making it ideal for slitting and ringing fiber optic cables, buffer tubes, and jackets. With a capacity of 0.05" to 0.3", this versatile tool is perfect for professional use.