3M Speedglas 9100 Welding Helmet Magnifying Lens - 1x to 2.5x - 1.5x - 171021 Improve your welding accuracy and productivity with the 3M Speedglas 9100 Welding Helmet Magnifying Lens. This lens provides 1.5x magnification, which gives you a closer, clearer view of your weld. This can help you to make more precise welds and to finish your welds faster. The 3M Speedglas 9100 Welding Helmet Magnifying Lens is easy to install and use. It simply snaps into place between the welding filter and the outside protection plate. The lens is also scratch-resistant and fog-resistant, so you can be sure that it will provide you with clear vision even in difficult conditions. Features: 1.5x magnification Easy to install and use Scratch-resistant and fog-resistant Benefits: Improved welding accuracy and productivity Closer, clearer view of your weld Can help you to make more precise welds and to finish your welds faster Applications: MIG welding TIG welding Stick welding Other arc welding process