Front Lens Cover Compatible with Brand Savage Compatible with Grainger Part Number 60HK08 60HK09 Compatible with Manufacturer Model Number 0700000490 0700000491 Compatible with Series A40 Diopter Strength 0.0 Features Four Arc Sensors For Higher Auto Darkening Response For Use With Savage A40 Professional Automatic Welding Helmet Lens Color Clear Magnification No Magnifying Power 0 Plate Length 3 7/8 in Plate Thickness 0.3 in Plate Width 2 in