Harken 75 mm Ratchamatic Block – Swivel, Cam Cleat
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.
| Imperial | Metric | |
| Sheave Diameter | 2 15/16?in | 75 mm |
| Max Line Diameter | 7/16?in | 12 mm |
| Max Working Load | 750?lb | 340?kg |


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