This Harken 57 mm single ratchet block is designed for the controlled handling of lines under high load on sailboats.
The block features an 8-sided Hardkote-anodized, Teflon®-impregnated sheave that provides friction braking of the line at 180 degrees.
With low weight and high breaking strength, it is suitable for efficient trimming where precise control and reliable load handling are important.
Key features
57 mm ratchet block for lines up to Ø10 mm
Makes it easier to handle lines under high load
8-sided Hardkote-anodized sheave
Teflon®-impregnated sheave with friction braking
SWL 227 kg and breaking strength 907 kg
