ISC

ISC Medium Blue Spring Block

$324.99 USD

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Diameter 3/4" (RP055A) 5/8" (RP054A)

A medium spring block from ISC, perfect for the working arborist. The upper sheave and pin are captured by the spring locking mechanism, eliminating the chance of dropping a sheave. The rope-friendly side plates are thick hot-forged aluminum with blue anodizing for a long-lasting finish.

RP055A: 3/4" rope capacity
RP054A: 5/8" rope capacity

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