This Harken 57 mm ratchet block is a single block with a swivel and beckets for controlled handling of lines under high loads.
The ratchet function helps the sailor hold the line more effectively, so the load can be precisely controlled during trim and maneuvers on board.
The block features an 8-sided Hardkote-anodized, Teflon®-impregnated sheave that provides friction braking of the line at 180 degrees.
Key features
57 mm ratchet block for sailing
Single block with swivel and becket
For lines up to Ø10 mm
SWL 227 kg and breaking strength 907 kg
8-sided Teflon®-impregnated sheave
