Dutton-Lainson DL600A Manual Trailer Winch - Zinc Plated This manual trailer winch by Dutton-Lainson offers freewheel operation optimal for horizontal pulling applications. Slotted mounting holes make for easy installation while the permanent lubrication allows for maintenance free operation. All the zinc plated oats feature a TuffPlate finish for a long working life and additional corrosion resistance from marine environments. The base features reinforced and embossed heavy gauge steel bases fo