What tools are needed to cut a fiber optic cable

Kevlar cutters, fiber optic cable strippers, and specialized fiber cutting scissors are essential tools for safely cutting fiber optic cables without damaging the fibers.

Kevlar or Aramid Yarn Cutters

Fiber optic cables often contain Kevlar (aramid) strength members, which are extremely tough and cannot be cut with regular scissors or snips. Kevlar cutters are specifically designed to handle these fibers, providing clean, precise cuts without fraying or dulling quickly. They typically feature heat-treated alloy steel blades with slight serrations to prevent slippage and ergonomic handles for comfort during repeated use.

Examples include the trueCABLE Fiber Optic Kevlar Cutter and the Jonard JIC-186, which can cut both Kevlar and fiber optic cable materials effectively.

Fiber Optic Cable Strippers

Before cutting, the outer jacket of the fiber optic cable must often be removed. Fiber optic cable strippers are designed to strip the protective jacket and buffer coatings without damaging the delicate glass fibers inside. They come in various types, including slitting, rotary, and multi-hole strippers, suitable for different cable diameters and coatings.

Strippers are essential for preparing the cable for termination or splicing.

Specialized Fiber Cutting Scissors

For cutting the individual glass fibers after stripping, technicians use fiber optic cutting scissors. These scissors are small, precise, and designed to cut fibers cleanly without crushing or splintering the glass. Some models, like the CFS-2 three-hole optical fiber cutting scissors, allow stripping and cutting of multiple fiber layers, including the outer sheath and cladding.

Best Practices

Always use tools designed for fiber optic cables; regular scissors or side cutters will damage the fibers or aramid yarn. Cut the cable to length first, then use Kevlar cutters for strength members, and finally use fiber scissors for individual fibers. Practice with the tools to ensure clean, precise cuts and avoid damaging the fibers.

Using the correct combination of Kevlar cutters, fiber optic strippers, and fiber cutting scissors ensures safe, efficient, and precise handling of fiber optic cables during installation, splicing, or termination.