This is a specific replacement soldering tip for use with Hakko FX-100 soldering systems. It's from Thermaltronics' H Series, specifically the 600 Series which is designed for temperature-sensitive soldering jobs. The tip style is a 30-degree chisel shape. The important dimensions are: the tip width is 1.78mm (which is 0.07 inches), and the tip length is 10mm (0.39 inches). It's designed as an interchangeable part, so you can swap it out with other tips on your Hakko FX-100 soldering iron. A chisel tip like this is really versatile – great for a variety of tasks like drag soldering, working on through-hole components, or any job where you need a flat edge to transfer heat. It's made from quality materials to ensure good heat transfer and longevity. If your old tip is worn out or you need a different shape for a specific project, this is the exact part you need to keep your soldering work precise and efficient. Make sure your soldering station is a Hakko FX-100 model before ordering.