Feature: *510 Interface Soldering Iron Tip, Portable USB Soldering Iron Tip Welding Rework Accessories Tool Parts 15W 2inch(51mm). *510 interface universal. *The difference between silver plating and bare copper is that silver plating is a layer of nickel plating on the basis of pure copper to prevent oxidation and keep it bright silver.But the function and material are exactly the same. Specifications: Product Name: Soldering Iron Tip Material: Copper Color: Silver Process: silver plating Soldering iron tip length: (Approx. ) 51mm Power: 15W Optional Type: B, C, K Connection mode: 510 interface Temperature adjustment range: 500() Suitable for: Portable USB Welding Rework Tool Quantity: 1pc Package Included: 1 Soldering Iron Tip Note: 1.Transition: 1cm=10mm=0.39inch. 2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 3. Please allow slight manual measurement deviation for the data. _x000D_