Description of Harken Black Magic 57mm HL Double w/Becket
The entire line of Black Magic Air blocks has been redesigned with a sleek new look. Their unique, performance-packed engineering remains exactly the same. These strong, lightweight blocks feature free-rolling high-load Torlon® roller bearings for a high strength-to weight ratio.
Like all Black Magic blocks, the three-way head swivels/locks in front/side positions. Blocks are easily disassembled with a single hex wrench.
Sheave Ø (mm) 57 mm
Sheave Ø (in) 2 1/4 in
Length (mm) 152 mm
Length (in) 6 in
Weight (g) 352 g
Weight (oz) 12.43 oz
Shackle pin Ø (mm) 8 mm
Shackle pin Ø (in) 5/16 in
Maximum line Ø (mm) 12 mm
Maximum line Ø (in) 7/16 in
Maximum working load (kg) 1633 kg
Maximum working load (lb) 3600 lb
Breaking load (kg) 3267 kg
Breaking load (lb) 7200 lb