The updated RP055 from ISC is a 3/4″ capacity spring block perfect for the working arborist. Compact design and the unique upper sheave opens and closes and secures easily. Eliminates the chance of dropping a sheave. The rope friendly rounded side plates are thick aluminum with a blue powder coating to enhance the life of the block.
Capacity: 3/4″ rope diameter
Sheave: 2 3/4″ diameter
Weight: 3.5 lb.
WLL: 30kN (6,600 lb)
Breaking Strength: 150kN (33,000 lb)
