The Notch 13mm Rigging Block is a small, lightweight aluminum arborist block with the same careful engineering that you can expect from Notch. The rounded aluminum sides are rope friendly and reduce overall weight, while the stainless steel axle provides a massive MBS for the size. Weight: 1lb (.45kg) MBS: 100kN (22,480lbs) WLL: 20kN (4,496lbs) Max Working Line Diameter: 1/2in (13mm) Max Sling Diameter: 5/8in (16mm) 20 kN WLL / 100 kN MBS Hot forged aluminum side plates with rope friendly rounded cheeks Precision CNC machined aluminum sheaves with wide bend radii Low profile, secure, easy to-open captive screw pin lock High wall, full diameter, improved anchor sling protection Wide, concave upper sheave accepts 5/8” anchor slings Flared side-plates reduce twisting in complex rigging scenarios Meets standard requirements of ASME B30.26
