The Current Tools 406 Hook-Type Sheave features a 6″ diameter pulley and a rugged welded-steel frame with forged-steel hook ends (1″ opening). The 5″-wide aluminum sheave runs on self-lubricating bearings and is rated for up to 4,000 lb (≈ 17.8 kN) of load capacity. Ideal for guiding cable during pulls in tight conduit entries.