Harken 57mm Carbo Ratchet Block

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57mm Harken Carbo Ratchet Block

57mm Harken Carbo Ratchet blocks allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing.

This block has an on/off switch so the ratchet can quickly be turned off when not needed.


  • Sheave Ø (mm) - 57 mm
  • Maximum line Ø (mm) - 10 mm
  • Maximum working load (kg) - 227 kg

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