Notch 1/2" Rigging Block


Discover the Notch 1/2″ Rigging Block, a compact and lightweight arborist block designed to handle working lines up to 1/2” (13mm) in diameter.


  • 20 kN WLL / 100 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 5/8” anchor slings with a wide, concave shape
  • Flared side-plates engineered to minimise twisting in complex rigging scenarios


  • Working Load Limit:  (WLL) 20 kN (4,496 lbs.)
  • MBS:  100 kN (22,480 lbs.)
  • Max Working Line Diameter:  1/2 in (13mm)
  • Max Sling DIameter:  5/8 in (16mm)
  • Upper Sheave Diameter:  .75 in (19mm)
  • Lower Sheave Diameter: 1.5 in (38mm)
  • Height:  4.7 in (118mm)
  • Width:  2.7 in (68mm)
  • Weight:  1 lb. (.45kg)
  • Sideplate Material: Aluminium
  • Sheave Material:  Aluminium
  • Axle Material:  Stainless Steel

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