Ramset has been making quality powder actuated tools for years. The Viper tool quickly became a favorite tool of anyone doing overhead fastening. Whether hanging ceiling wires, light fixtures or data cable runs, the Viper tool is designed specifically for shooting to the ceiling. The earliest version was a very simple tool that required manual advance. The tool was a real work horse but it required daily cleaning. The latest version, the Ramset Viper 4 is a great tool for overhead fastening. The tool offers automatic advance and a unique pole system that is stable and expandable from 3′ to the moon just by adding extension segments. The Viper 4 tool has the added safety feature of a separate sleeve for activation making it safer than other contact tools. You can’t just lean on the tool by mistake and set it off, it must be in contact with the ceiling, and both hands on the pole. I would add an important point on the Ramset Viper 4 tool: POLES ARE NOT INTERCHANGEABLE WITH PREVIOUS MODELS! We are finding that many online marketers not only don’t understand the tools, but don’t understand the importance of the right extension for the tool. If you have any questions on the Ramset Viper 4, visit our store online at ConstructionFastening.Net or call us toll free at 1-877-212-2377.