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are adjustable for many applications and weather conditions
High-strength pivoting lead blocks with cams are used for halyard controls on larger keelboats and as “head knockers” on dinghies and beach cats for sheeting directly from the boom
The larger sheave is compatible with a 9/16" line
or lash to almost anything and comes in 29 mm
HARKEN 76mm Double Midrange Block - Swivel, Becket, 1545 Type_Socks are adjustable for many applicationsHarken 76mm Midrange Double Block with Becket allows either a 2: 1 or 3: 1 purchase. Great for mastbase halyard lead blocks, mainsheets, spinnaker sheets, and control lines on offshore yachts. Perfect for spinnaker sheet blocks on boats to 35 feet. The robust construction of the Midrange series makes them a good choice to handle the high loads found on medium and large offshore boats. Ball bearing sheaves minimize friction. Beefier posts and wrap
