Impact Extension and Adapter Set in Blue Case

This item is a set of impact extensions and adapters, presented in a blue hard plastic blow-molded storage case. The case features compartments specifically molded to hold each tool, ensuring secure storage and organization. The tools themselves are made of a dark, likely black oxide or phosphate-coated, heavy-duty metal, characteristic of tools designed for impact use, suggesting high strength and durability. The set includes at least three impact extension bars of varying lengths, clearly labeled with their dimensions such as '9" EXTENSION BAR' and '12" EXTENSION BAR' as seen on the longest piece. The specific labeling on other pieces is less clear but follows a similar pattern. Alongside these extensions, there are at least three impact adapters/reducers, designed to change the drive size of sockets or other accessories. One appears to be a step-down adapter and another an impact universal joint or wobbly adapter, given its slightly bulkier appearance. The tools exhibit visible signs of use, including cosmetic wear such as scuffs, minor chips in the coating, and some surface grime, consistent with their function in a workshop or automotive environment. No major damage like cracks or bends are discernible. The overall craftsmanship appears robust, as expected for impact-rated tools, which are built to withstand high torque and repetitive stress. The blue plastic case, while functional, shows some dust and minor scuffs externally but maintains its structural integrity. There are no clear manufacturer's marks visible on the tools or the case in the provided image to identify the brand, though the style is common among many tool manufacturers. The set likely dates from the late 20th to early 21st century, given the material and design of both the tools and the case.