Conical 0.4mm Tip: Conical 0.4 mm tip helps deliver heat to solder joints on PCBs and can also be used for general soldering tasks | Compatable with: WLIR6012A, WLIR6023C, WLIR6023G, WLIR6023I, WLIR6023M, WLIRK6012A, WLIRK6023C, WLIRK6023G, WLIRK6023I, WLIRK6023M, and WLSK6012HD | Applications: Join wires (<8AWG), small appliances, model railroads, audio components, electronic repair, automotive, marine, hobby kits, jewelry, and crafts | Easy tip change: Tip is easy to remove and replace by turning the screw on side of heater, ensures secure placement of tip into heater for optimal performance