ISC Arborist Block 20mm (3/4") SRT-Single Rope Technique if your saw gets stuck

if your saw gets stuck in a branch you are trying to cut off - then the tear webbing will be activated

Size XS S L Volume 1

professionals were amazed by the cutting power and surgical precision that this sleek new blade affords

An ultra compact pulley

The bottom friction pin features a roller sheave for a smoother ascent and descent

ISC Arborist Block 20mm (3/4") SRT-Single Rope Technique if your saw gets stuckISC Alloy Arborist Block 20mm (3 4") 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. MBS: 150KN WLL: 30KN Pulley wheel colour Green Anchor wheel colour Red Body