This Harken 57 mm Carbo Ratchet block with swivel is designed for effective line control under high loads, where the sailor needs precise handling and strong holding power.
The block features an 8-sided, Hardkote-anodized and Teflon®-impregnated sheave that provides friction braking of the line at 180 degrees. This makes it suitable for trim and control tasks where the load varies rapidly.
With a maximum line diameter of 10 mm, a working load of 359 kg, and a breaking strength of 1080 kg, the block combines low weight with high performance for serious sailing.
Key features57 mm Carbo Ratchet block with swivel
Maximum line Ø10 mm
Working load 359 kg
Breaking strength 1080 kg
Holding power 10:1
