Found this
here
.... the component that poses the greatest risk are the Flight Control Counter-Balance Weights. The weights are made of depleted Uranium 238, which are 100% Cadmium Plated, emits low levels of radiation that is not harmful to humans, but these weights must be handled with caution. The true danger arises if a person were to grind through the cadmium plating. This action would cause radioactive Alpha particles to become airborne. Ingestion of these particles may cause irreparable damage to one's internal tissues. Maintenance professionals should remember that, if grinding is a required action, use gloves, industrial eye protection and a respirator. Gloves, wrapping material, wiping cloths, respirator filters, or any other articles used in the handling of damaged balance weights should be discarded and appropriately labeled as radioactive waste and disposed of accordingly. For more information see Advisory Circular 20-123 - AVOIDING OR MINIMIZING ENCOUNTERS WITH AIRCRAFT EQUIPPED WITH DEPLETED URANIUM BALANCE WEIGHTS DURING ACCIDENT INVESTIGATIONS.