Harken Powered Furling Drill AdapterThis bit will fit all drills with 1/2" Chuck
A cordless drill adapter and a short crank handle are included with each furler. Use the emergency handle or a cordless drill to turn the foil until the sail is reefed or furled.
Length: 1 7/8 in. (47.5 mm)
Width: 1 in. (25.5 mm)
Weight: 2.5 oz. (71 g)
Use with furling unit: Electric/hydraulic furling