Ratchet Blocks allow sailors to hand-hold loaded lines and offer a balance between holding power and controlled easing.
Machined aluminum sheaves are Hard Lube-anodized for strength and corrosion resistance. An eight-facet sheave holds the line securely with a 10:1 holding power, while certain Ratchamatic Blocks offer a 15:1 holding power.
Ball bearings, sheaves, and side plates are UV-stabilized with carbon black for maximum protection.
A 57 mm Carbo ratchet can hold loaded lines and control their release. With a 10:1 holding power, it can hold 100 pounds of sheet load with 10 pounds of your effort.
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CATEGORY: Harken Ratchet Blocks 
