2.Use alkaline batteries for best results. Do not mix old and new batteries. 3.Do not change the soldering tip when hot. Use the tip exchanger provided to remove the tip as shown. 4.The soldering tip is iron plated for long life. Do not file the tip as filing will destory the plating. 5.Remove the batteries from the tool when not using for prolonged periods to prevent batteries from lea king into the tools. Spare Tips Cat. No. Description BP10EU Conical BP11EU Screwdriver Weller Consumer Solderi