Pack of 1 – Hard-coated outside cover plates (part number 427000) for the 3M™ Speedglas™ Welding Helmet Series 9000 and 9002.

Features: 

Scratch-resistant Speedglas™ outside plates have a hard coating that protects against scratches, wear and tear
Hard coated cover lenses last around twice as long as the standard cover lenses 
Replace hard-coated cover lenses once a fortnight depending on use
Cover lenses suitable for the new Speedglas 9002NC
Lens size 159 x 96mm. 
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