Welcome to Defender Canada! 
Description
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. Specifications: Length: 1 7/8" (47.5 mm) Width: 1" (25.5 mm) Weight: 2.5 oz (71 g) This bit...
Harken Powered Furling Drill Adapter - 7431 Item # 1002853
Description
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.
Specifications:
- Length: 1 7/8" (47.5 mm)
- Width: 1" (25.5 mm)
- Weight: 2.5 oz (71 g)
- This bit will fit all drills with 1/2" Chuck
- Use with Furling Unit: Electric/hydraulic furling