ISC RP248 Compact 9/16" Forged Aluminum Rigging Block

The ISC RP248 compact 9/16" rigging block is part of ISC's next generation of arborist rigging tree pulleys.  The 200 Series are designed and manufactured in the UK, at their factory in North Wales.  

ISC is known for the strength and reliability of their classic pulleys and massively popular SpringLock locking mechanism.  Using state of the art stress analysis tools, ISC reshaped and redistributed the material in the hot forged high-strength aluminium frames to significantly change the way they performed under load to maximize strength. They then coupled this with a unique axle/frame interlocking design using heat treated hardened stainless steel axles which reduces the inherent tendency to deform or flex under extreme loads. The 200 Series pulleys are up to 150% stronger than their predecessors and are built to withstand even the toughest rigging jobs with ease.

The new Patent Pending “SafeLock” system achieves an extremely low profile design while maintaining the quick action of a SpringLock.  Every element of the ISC 200 Series Pulleys showcases the craftsmanship and attention to detail that they have received. Take a closer review and you will find the ISC 200 Series Rigging Pulleys are setting new standards for trusted performance.