The J.R.G. V2 Chain Hoist is designed for sectional garage doors using a 1-1/4” keyed shaft. It features a gear-driven jackshaft design with a 4.5:1 reduction ratio for smoother manual door operation. The hoist includes two shaft collars and one wall L-bracket, fits applications with a minimum 3-3/8” offset, and is built for dependable commercial and heavy-duty use.