Includes removable aluminum crank handle to utilize both 9:1 and 4:1 drives. Two drives offer the capability of retrieval/descent at average speeds from 13 to 30 ft/min. Includes 60’ of stainless steel or galvanized cable. Power drive digital winch features power drive hub on the 9:1 drive. An overload protection clutch installs between power drive hub and electric or pneumatic drill to eliminate overloading winch during retrieval; protects winch operator and retrieved worker from injury; is installed and removed without use of tools when switching to the 4:1 manual crank option in emergencies.