ESCO ROLL OFF HOOK Fits ropes up to 7/8" and ferrules up to 2-1/8" OD (light). Hook slot is 2" X 6 " after the ferrule is in place. ESCO Roll-off Hooks provide superior resistance to wear and abuse. ESCO Screwy ferrules maximize grip area and provide superior holding power over conventional ferrules when properly swaged. Roll-off Hooks are easier to repair by simply swaging on another ferrule. Field attachment is also possible with an ESCO wedge type ferrule.