The Speedglas 9100XX filter is designed for the Professional Welder incorporating dark shade ranges 8-13, grinding and torch cutting modes, and advanced arc detection electronics for use with all arc welding processes. The 3M Speedglas Welding Filter Series 9100 continues our tradition of outstanding optical quality, including uniform shading and minimal distortion across the entire filter viewing area. By selecting just the right setting for each task, you can reduce eye strain and improve the quality of every weld.