The 400 Series reel, with its double-bracket support structure, high-quality ball bearings, precise and reliable rotary transitions, and unique innovative design results in a double-bracing industrial-grade spring reel. The reel body is made of high-quality carbon steel construction, which is stable and firm, and the service life is greatly extended. This model is mostly seen in the assembly line of manufacturing factories for pneumatic assembly, or installed in the maintenance of equipment and vehicles, oil filling, etc.