Mid Span Slit & Ring Tool (5.8mm – 12mm)


$277.50 incl GST

The MS-426 Mid Span Slit and Ring Tool is a patented tool designed to provide easy access to optical fibres in Prysmian ESMF Optical Mini FlexTube® cables and other thick-walled jackets with a diameter ranging from 5.8 to 12 mm, including Corning equivalent cables. This tool builds on the popularity of the MS-6 and MS-26 Fibre Optic Mid Span Slitting Tools, and it comes with a ring feature that makes it even more versatile. With this tool, you can easily slit and ring optical fibres in thick cables, making it a must-have for any technician working with such cables.

Groove Sizes: 5.8-6.4 mm | 7.8-8.4 mm | 9.8-10.4 mm | 11.2-12 mm

We are an Authorised Distributor of Jonard Tools, offering their extensive range of high-quality products. While we strive to keep a selection of Jonard Tools in stock for immediate shipment, please note that some items may need to be sourced upon your purchase. Rest assured that we are committed to providing you with genuine Jonard Tools, backed by their 'Made For Life®, Guaranteed For Life' warranty. If you can't find the specific tool you need on our website, please browse through the catalogue or reach out to us and we'll be happy to assist you in sourcing it.
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Building on the popularity of the MS-6 and MS-26 Fibre Optic Mid Span Slitting Tools, Jonard Tools have incorporated a ring feature in this tool to make it even more versatile.

The Mid Span Slit & Ring Tools from Jonard Tools are an essential solution for opening fibre jackets and loose buffer tubes, providing easy access to fibres without causing any damage. The patented MS-426 Mid Span Slit and Ring Tool is designed to provide easy access to optical fibres in Prysmian ESMF Optical Mini FlexTube® cables (as well as other thick-walled 5.8 to 12 mm diameter jackets, including Corning equivalent cables). With their patented design and replaceable blades, these tools ensure efficient and reliable fibre work.

Key Features:

  • Precision Grooves: Multiple grooves, including slitting and ringing, allow for versatile usage.
  • Groove Sizes: Each tool offers a range of groove sizes to accommodate different cable diameters.
  • Cable Type Compatibility: Designed to work with various cable types, such as Corning Altos® with FastAccess®, thick-walled jackets, outer jackets, and loose buffer tubes.
  • Replacement Cartridges: Replacement blades are available for different tool models, ensuring long-term usability.


  • Easy Fibre Access: Open fibre jackets and loose buffer tubes effortlessly, enabling smooth fibre access during installations or repairs.
  • Damage-Free Operation: The tools are specifically engineered to prevent any damage to the fibre, ensuring reliable and high-quality results.
  • User-Friendly Design: With simple instructions and marked grooves for cable size recommendations, these tools are easy to use, even for beginners.
  • Versatile Application: Suitable for a wide range of cable diameters, allowing you to work with different types of cables.
  • Durable and Long-Lasting: Replaceable blades ensure the longevity of the tools, providing excellent value for your investment.
  • Replacement blade set available, part number: MS-426RB
  • Blades last for 5,000 slits/cuts


  • Cut Type: Slit, Ring
  • Number of Slitting Grooves: 4
  • Number of Ringing Grooves: 4
  • Cable Type: Thick-walled Jackets (up to 2.0 mm thick)
  • Cable Diameter: 5.8 mm-12 mm
  • Dimensions: 9.1 cm x 3.9 cm x 8.6 cm (3.58″ x 1.53″ x 3.37″)
  • Weight: 207.932 g (0.46 lb)