Harken 57mm Carbo Air Fiddle Ratchet Block
Harken 57mm Carbo Air Fiddle Ratchet Block is a good choice for 3:1 and 4:1 tackles on dinghy vangs and mainsheets.Carbo Ratchets blocks allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing. Lightweight Carbo Ratchets are available in 40mm, 57mm and 75mm sizes. All the Carbo Ratchets feature a recessed On-Off switch that is easily operated from either side. The 40mm cam-arm versions work in ratchet mode only. Commonly 57mm blocks are for jibsheets and spinnakers on medium dinghies.The 40mm, 57mm and 75mm Carbo Ratchamatic is adjustable for many applications and weather conditions. The load-sensing ratchet block rolls freely in both directions under low loads, then engages the ratchet automatically as loads increase. With 180 degree wrap, you get a 10:1 holding power.Key FeaturesHand-hold your loaded linesUse for spinnaker sheet systems on dinghies, sportsboats, and medium keelboatsRatchet fiddle blocks are hand and crew saversAllows a line to be eased instantly with controlOn/Off switch allows the ratchet to be turned off in light airHardkote-anodized aluminum sheavesStainless steel swivel shackleSheave Diameter: 2 1/4" (57 mm)Max. Line Diameter: 3/8" (10 mm)Max. Working Load (MWL): 792 lb. (359 kg) Breaking Load: 2380 lb. (1080 kg)Weight: 4 oz. (113 g)Length: 4 5/8" (118 mm)
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