Profile: William Hook Limited specializes in offering services to crane operators and owners of lifting equipment. To complement our range of services to crane operators, we offer a wide range of products in connection with our maintenance, examination and testing activities. The safe load indicator, or rated capacity indicator is an essential tool in the safe operation of a jib crane - truck, mobile, crawler, dockside or marine. We supply a large range of lifting equipment and accessories from quality manufacturers including chain and webbing slings, shackles and links. We are well known for the supply of parts for the hydrocon range of truck cranes and can also supply parts for cranes manufactured by coles and jones.