46 Self-Tailing Radial Aluminum Winch - 2 SpeedThe Radial winch drum’s gripping surface is shaped for each winch size and drum material and features diagonal ribs (rather than textured abrasive materials) to maximize gripping power and greatly reduce line wear. The self-tailing mechanism on the winch means that one crew member can quickly and easily trim or raise sails.Specifications:Material: AluminumConfiguration: Self-tailingSpeed: 2Drum: 100mm/ 3-7/8inBase: 184 mm/ 7-1/4inHeight: 201mm/ 7-15/16inWeight: 5.2kg/ 11.5lbLine entry height: 90mm/ 3-9/16inMinimum line: 8mm/ 5/16inMaximum line: 14mm/9/16inFastener circle: 150mm/ 5-7/8inFasteners: 8 SH mm/ 5/16 SH inNumber of fasteners: 5Gear ratio-1: 2.30Gear ratio-2: 9.17Power ratio-1: 11.70Power ration-2: 46.50Available power: Manual