Superior Parts M745 Spring Loaded Rafter Hook / Retractable Saw Hanger Allows the tool to be safely hung from joists, rafters, trusses, etc. | Extends the life of the tool by protecting it from damage resulting from an accidental fall Easily hang tool from rafters for increased productivity. | Retractable Hook to move out of way while not in use, making it more convenient than other hangers Construction workers & framers  keep your tools in reach! Save time and money! | Standard Version 1-3/4" Rafter Hooks Dimensions: 3" x 1-3/4" x 4-3/8" | Universal Bracket | Comes in a nice clamshell packaging Compatible with: Skil Wormdrive Saws (HD77) | Hitachi NR83A