Harken Power3 - 57 mm Ratchamatic Block, Swivel - 3/8" Line, 500 Lb. Work Load - Standard Grip, Black 60mm Used In: Older Globemaster bulb

Used In:  Older Globemaster bulb models

The 16 mm is Harken’s smallest block

Suitable for both petrol and diesel fuels

grip range 3/8-1/2"

auto and hobby applications

Harken Power3 - 57 mm Ratchamatic Block, Swivel - 3/8" Line, 500 Lb. Work Load - Standard Grip, Black 60mm Used In: Older Globemaster bulbThese unique load sensing blocks shift seamlessly between ratchet and light air modes with no switches involved. They roll freely in both directions under low loads, but automatically engage the ratchet assist under higher loads. Best of all, the ratchet engagement point is adjustable to suit your muscle power and sailing style. Features Perfect for main jib sheets and asymmetric spinnakers Adjustable ratchet engagement Free release under light load