Strong, powerful Magnetic Arrows Welders Magnets are ideal for welders that need fast set-up and accurate holding of sheet stock or tubing. Ferrous stock can be securely held with these welders magnets at angles of 45°, 90°, 135° and 180° Available in three sizes 25lb, 50lb & 75lb Multipurpose: can be used for welding preparation, soldering, assembly, marking off and Pipe installation. Can also be used as a lifting device for smooth steel sheet. Note: do not exceed rating of magnet.