Harken 75mm Ratchet Block — Swivel 747 Adjustable fastening along bottom to

Adjustable fastening along bottom to secure in place

Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers

Lashing allows ratchet adjustment close to the deck

A switch on the side engages and disengages the ratchet mechanism

Maximum wire Ø (in)3/32 in

Harken 75mm Ratchet Block — Swivel 747 Adjustable fastening along bottom toPart No. 2670 Carbo Ratchets allow sailors to hand hold loaded lines and offer balance between holding power and controlled easing. Sheave (mm)75 mm Sheave (in)2 15 16 in Length (mm)137 mm Length (in)5 3 8 in Weight (g)227 g Weight (oz)8 oz Shackle pin (mm)6 mm Shackle pin (in)1 4 in Maximum line (mm)12 mm Maximum line (in)7 16 in Maximum working load (kg)341 kg Maximum working load (lb)750 lb Breaking load (kg)1361 kg Breaking load (lb)3000 lb