Harken 57mm Ratchet Block w/ Swivel & 1.5x Grip Power3 ratchet blocks provide sailors that race small one-designs with three holding-power options to handle a variety of wind and sea conditions. More choices allow sailors to fine-tune their set-ups in tandem with the purchase that provides the ideal level of power, responsiveness and grip. On/off switch operates from both sides. 1.5x grip: breeze–on/puffs; 15:1 holding power Specifications:
Sheave Ø: 2 1/4 in (57 mm)
Length: 4 1/16 in (103 mm)
Weight: 3 oz (85 g)
Shackle pin Ø: 3/16 in (5 mm)
Maximum line Ø: 3/8 in (10mm)
Maximum working load: 500 lb (227 kg)
Breaking load: 2000 lb (907 kg)
Holding power w/180 degree wrap 50 lb (23 kg): 15:1 DO NOTuse Harken equipment for human suspension unless product is specifically certified and labeled for such use.
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