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Mid Span Slit & Ring Tool (8.7 mm-14.6 mm)

The PATENTED and award-winning MS-446 Mid Span Slit and Ring Tool is designed to provide easy access to optical fibers in AFL's Heavy Duty OSP MicroCore® (LMHD-Series) cables as well as other thick-walled 8.7 to 14.6 mm diameter jackets. This mid span slit and ring tool also features the following:

  • Consists of 4 precision slitting grooves and 4 precision ring grooves ranging in size from 8.7 mm to 14.6 mm in diameter
  • One side of the tool performs radial/ring cuts and the other side slits the cable (longitudinal cut)
  • Compact design weighing less than 8 oz with included tethering hole makes it perfect to use in tight spaces or on the go
  • Indicator line on top of the unit indicates the position of the blade for accurate slitting and ringing
  • This tool was specially designed for AFL's Heavy Duty OSP MicroCore® (LMHD-Series) cables and other similar style cables
  • Replacement blade set available, part number: MS-446RB
  • Blades last for 5,000 slits/cuts
  • All of our MS Series Mid Span Tools are patented for their unique design and functionality. Our MS-426 won the 2019 Cabling Installation & Maintenance Gold award for innovation and our MS-6 won the same prestigious award in 2018!

Groove Sizes: 8.7-9.1 mm | 9.5-9.9 mm | 11.8-12.2 mm | 14.2-14.6 mm


Cut Type

Slit, Ring

Number of Slitting Grooves


Number of Ringing Grooves


Cable Type

Heavy Duty OSP MicroCore® (LMHD-Series)

Cable Diameter

8.7 mm - 14.6 mm


4" x 1.5" x 3.1" (101 mm x 38 mm x 79 mm)

Weight 0.54 lb (244.252 g)
UPC # 810053350775