![Harken 57mm Ratchet Block — Swivel, 2x Grip Harken 57mm Ratchet Block — Swivel, 2x Grip](https://cdn11.bigcommerce.com/s-c4k0rvl9di/images/stencil/300x300/products/1097/2152/har2169__58785.1621696891.jpg?c=1)
Power3 ratchet blocks provide sailors that race small one-designs with three holding-power options to handle a variety of wind and sea conditions. More choices allow sailors to fine-tune their set-ups in tandem with the purchase that provides the ideal level of power, responsiveness and grip. The Carbo Ratchamatic® is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light-air modes is seamless. 1.5x grip: breeze–on/puffs; 15:1 holding power.
Specifications:
Sheave Ø (mm) 57 mm, Sheave Ø (in) 2 1/4 in
Maximum line Ø (mm) 10 mm, Maximum line Ø (in) 3/8 in
Maximum working load (kg) 227 kg, Maximum working load (lb) 500 lb