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E1FL8313 4 1/4 x 3 1/4 Shade 13 Lens (108mm x 83mm)
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    Rapid Ref : E1FL8313  

    4 1/4" x 3 1/4" Shade 13 Lens (108mm x 83mm)
    E1FL8313

    £0.46  EX VAT
    SSP Suggested Selling Price = £0.85  YOU SAVE £0.39

    4 1/4" x 3 1/4" Shade 13 Lens

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    108mm x 83mm Lenses FAQs

    Practical answers on choosing, fitting and looking after the taller-format shaded, cover and backing lenses used in many fixed-shade helmets.

    Does a bigger lens need a darker shade than a smaller one?icon-minus-redicon-plus-red

    No. The shade you need is decided by the process and the welding current, not by the size of the lens window. Published shade charts list shade by process, current and, for gas work, plate thickness.

    A taller lens simply gives you a larger view of the work. Use a recognised shade chart for your process, start with a shade that is dark enough, and step lighter only within the recommended range. Check the helmet maker's instructions and your risk assessment.

    Do I need safety glasses under my helmet as well as the lens?icon-minus-redicon-plus-red

    Usually yes. The helmet lens protects against arc radiation, but flying slag, grinding fragments and chips can still reach your eyes, for example when you lift the helmet. Where such hazards exist, people using a welding helmet with filter lenses would also need glasses with side shields or goggles.

    Eye injuries commonly come from slag, grinding and chipping. Choose impact-resistant eyewear with side protection and follow the helmet maker's instructions and your risk assessment.

    Can I use the same lens for plasma cutting as for MIG?icon-minus-redicon-plus-red

    Not automatically. The shade should be chosen for the process and the cutting current, and plasma cutting is listed separately from arc welding in shade tables. Published plasma cutting values apply where the arc is clearly seen, and lighter filters may be used when the arc is hidden by the workpiece.

    Because the figures differ between sources, use the shade guidance in the plasma equipment's instructions as your starting point. Do not drop below the minimum for your current, and check with the helmet and lens maker.

    How do I check that a lens of this size will fit my helmet?icon-minus-redicon-plus-red

    Remove the old lens and measure its overall width and height, or read the size from the helmet manual or old lens packaging. Sizes are given in inches as well as millimetres, so a figure may differ slightly between listings of the same format.

    Also compare thickness and corner shape, and make sure the lens sits flat with the clip or gasket holding it. Cover, filter and backing lenses of the same size are different parts, so check you order the layer you need. If unsure, use the helmet's parts list.

    See all 6 questions for this category

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