RDRG 10:1 double reduction hoist for 1 1/4” door shaft w/ RDRG D Kit 4B38 & 4B38 x 1 1/4” bore main gear & 1/4” keyway. Heavy duty cast gear construction. Head Plate mount for weld up or bolt up installation. Integral cast iron gears. 26’ of Hand Chain, & Chain Keeper