HARKEN 100mm Aluminum ESP Block - Swivel, 6100 Block Size_63.5 mm masthead blocks

masthead blocks

Material optimization and the cut-away design minimize weight and allow easy fresh water rinsing of salt and debris from the bearings

So size for size

Throughout the history of rope clutch development

<p>The patented T2 Ratchamatic is Harken&rsquo

HARKEN 100mm Aluminum ESP Block - Swivel, 6100 Block Size_63.5 mm masthead blocksCruising ESP blocks complement Harken's existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats. Available in aluminum or hand polished stainless steel. of wind conditions