Notch 5/8" Rigging Block


The Notch 5/8″ Rigging Block is a medium-sized, lightweight arborist block designed to accommodate working lines up to 5/8” (16mm) in diameter.


  • 25 kN WLL / 125 kN MBS
  • Crafted with hot forged aluminium side plates featuring rope-friendly rounded cheeks
  • Equipped with precision CNC machined aluminium sheaves, offering wide bend radii
  • Features a low-profile, secure, and easy-to-open captive screw pin lock
  • Enhanced anchor sling protection with high wall and full-diameter design
  • Upper sheave designed to accept 1” anchor slings with a wide, concave shape
  • Flared sideplates engineered to reduce twisting in complex rigging scenarios


  • Working Load Limit:  (WLL) 25 kN (5,620 lbs.)
  • MBS:  125kN (28,100 lbs.)
  • Max Working Line Diameter: 16mm
  • Max Sling Diameter: 25mm
  • Upper Sheave Diameter: 50mm
  • Lower Sheave Diameter: 61mm
  • Height: 158mm
  • Width: 87mm
  • Weight: 1.4 kg
  • Sideplate Materials:  Aluminium
  • Sheave Material:  Aluminium
  • Axle Material:  Stainless Steel

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