Material: Alloy, mainly made of copper, iron, nickel, chromium, tin (Lead-free). Total Length: 70 mm / 2.76 inch; Shank Diameter: 5.5mm; Fit for Power: 60W. Lead-free soldering iron tips can bear higher temperature than those normal tips. Wires-free soldering iron tips are better for the environment. Package Includes:3 x Solder Tip Lead Free Solder Uxcell 4.5mm X 68mm Lead-free Soldering Iron Tip Replacement Solder Conical Tip 40W Black 2pcs Soldering Tips Perfectly for soldering tips on lead-free. Find many great new & used options and get the best deals for 5.5x70mm Lead-free Soldering Iron Tip Replacement Solder Conical 60W Black 2pcs at the best online prices at ! Free shipping for many products