This is the newest edition to ISC’s range of Industry Standard Cast Rigging Blocks for Arborists. Weighing in at only one pound, the RP048 delivers an impressive 17 kN Working Load Limit (WLL) and and 85 kN Minimum Break Strength (MBS). Designed to be used with ½” rigging lines, the RP048 is the perfect solution for overhead lowering and lightweight rigging applications. The Spring Lock mechanism allows easy opening (even while wearing gloves) for direct connections to rigging slings and the upper sheave connection point eliminates the need for a carabiner in the system. Now the small and powerful rigging block is made with Hot Forged Technology.