This Harken 57 mm Ratchet block with swivel is designed for controlled handling of lines under high load on board.
The ratchet function provides effective friction braking of the line at 180 degrees, allowing the sailor to trim with better control and less effort.
The block features an 8-sided Hardkote-anodized, Teflon®-impregnated sheave and is suitable for lines up to Ø10 mm.
Key features
57 mm single ratchet block with swivel
For lines up to Ø10 mm
SWL of 227 kg
Breaking strength of 907 kg
8-sided Hardkote-anodized, Teflon®-impregnated sheave
