3M Speedglas 100 Welding Shield - Black Shield, suitable for most welding applications, ideal for infrequent welding MMA, MIG, MAG, TIG, 3M Speedglas 100 welding shield with auto-darkening filter. Five user-selectable shades 8-12 with a switching light to dark time of 0.1ms, three selectable sensitivity settings. Fitted with the 100V auto darkening filter with a 44 x 93mm viewing area, available in classic black or a variety of specific identity graphic shield options