SPI Supplies

SPI Aperture and Slot Grids

Use when large unobstructed areas are to be studied


  • Allows the user to see a complete section without grid bar interruption.
  • Smooth edges.
  • Excellent dull/shiny side discrimination.
  • All grids are 3.05mm in diameter.
  • Order numbers include a code letter that indicates metal type:
  • Gold plated copper and gold plated nickel grids for the inertness of gold, but at a much lower price

  • SPI Aperture Grids
    SPI Aperture Grids with multiple holes
    SPI Slot Grids
    SPI Slot Grids with multiple slots
    SPI Tri-Slot™ Grids


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    Sunday July 06, 2008
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