Heavy-duty pivoting guide blocks with jam cleats are used for halyard adjustments on large keelboats and mainsail sheet adjustments under the boom on dinghies and sport catamarans. The mounting hole spacing and rivet dimension are identical to those of the Classic models, which facilitates conversions. The cam cleat can be reversed for up or down blocking. Can be used as a becket block.
RESOURCE SPECIFICATIONS

Sheave Ø (mm) 40 mm
Ø of sheave (in) 1 9/16 in
Length (mm) 112mm
Length (in) 4 1/2 in
Weight (g) 186g
Weight (oz) 6.6oz
Max rope Ø (mm) 10 mm
Max rope Ø (in) 3/8 in
Maximum working load (kg) 136 kg
Maximum working load 300 lbs.
Breaking load (kg) 430 kg
Breaking load (lbs) 950 lbs