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G-80620 18" x 18" x 4" Surface Plate 80620

Crystal Pink-« Granite Surface Plate
18" x 18" x 4" Crystal Pink-« Granite Surface Plate - Grade AA, 2 Ledges

18GÇ¥ x 18GÇ¥ (450mm x 450mm) Crystal Pink-« Granite Surface Plate with a 4GÇ¥ (100mm) thickness. Crystal Pink-« Granite has the highest percentage of quartz of any granite for superb wear resistance. Grade AA (Laboratory Grade) for precision operations in constant temperature gaging rooms and metrology departments. .000050GÇ¥ (0.0012mm) Flatness unilateral tolerance. Produced with 2 ledges.

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  • Meets or exceeds U.S. Federal Specification GGG-P-463c and ASME B89.3.7 2013 for flatness.
  • Great surface hardness and wear resistance GÇô the highest percentage of quartz crystals of any granite plate.
  • Smooth, jewel-like quartz bearing points protect accuracy and finish of both the surface and the tools used on it.
  • Quality and economy combined.
  • Comparable to black granite plates while outwearing them as much as 5 to 1.
  • Meets or exceeds 50 lb per square foot (24kg per 1,000 sq. cm) load bearing specifications. Available in 100 lb (45kg) test series.
  • Standard-size plates are mounted on resilient support pads, providing isolation from normal vibration and a non-distorting 3-point suspension.
  • Packed one per crate with skids for forklift handling.


  • Made in America: Yes
  • Size LxWxT (in): 18 X 18 X 4
  • Grade (U.S.): AA Laboratory
  • Size LxWxT (mm): 450 X 450 X 100
  • Ledges: Yes


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