Pack of five anti-fog replacement clear visor grinding plates (part number 523001) for your 3M™ Speedglas™ Flip-Up Welding Helmet 9100 FX, 9100 FX Air & 9100 MP. 

• Grinding plates are covered in an anti-fog coating
• Helps prevent your Speedglas™ 9100 FX grinding visor from fogging up
• For use in high humidity welding conditions
• Look to replace your grinding cover plates every 2-4 weeks depending on use, or whenever they become scratched and difficult to see through
• Clear, curved 170 x 100mm viewing area
• Grinding visor dimensions 225 x 110mm.