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Plate Style Plate Style |
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Specifications Met Specifications Met |
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![]() | Black |
Certification Certification |
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Corrosion resistant and nonmagnetic, these smooth plates also resist warping and abrasion. The extremely tight flatness tolerances provide an accurate reference plane for layout and inspection work.
Plates with two ledges are used to hold fixtures and instruments with clamps.
Laboratory Grade AA plates are for precision quality control work.
Inspection Grade A plates are for general quality control work.
Toolroom Grade B plates are for checking work throughout a shop.
Also Available: Other plate sizes. Please order 2245A999 and specify grade, length, width, thickness, and with or without ledges.
For technical drawings and 3-D models, click on a part number.
Plates | Plate Covers | ||||||||||
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Lg. | Wd. | Ht. | Flatness Tolerance | Color | Specifications Met | Certification | Wt., lbs. | Each | Each | ||
Rectangular | |||||||||||
Laboratory Grade AA | |||||||||||
18" | 12" | 4" | 0.00005" | Black | Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 93 | 0000000 | 0000000 | 00000000 | 000000 |
24" | 18" | 4" | 0.000075" | Black | Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 185 | 0000000 | 000000 | 00000000 | 00000 |
Inspection Grade A | |||||||||||
18" | 12" | 4" | 0.0001" | Black | Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 93 | 0000000 | 000000 | 00000000 | 00000 |
24" | 18" | 4" | 0.00015" | Black | Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 185 | 0000000 | 000000 | 00000000 | 00000 |
36" | 24" | 6" | 0.0002" | Black | Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 555 | 0000000 | 000000 | 00000000 | 000000 |
48" | 36" | 6" | 0.0004" | Black | Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 1,110 | 0000000 | 00000000 | 00000000 | 000000 |
Toolroom Grade B | |||||||||||
12" | 8" | 2" | 0.0002" | Black | Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 21 | 0000000 | 000000 | 000000 | 00 |
18" | 12" | 3" | 0.0002" | Black | Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 70 | 0000000 | 000000 | 00000000 | 00000 |
24" | 18" | 3" | 0.0003" | Black | Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 139 | 0000000 | 000000 | 00000000 | 00000 |
36" | 24" | 4" | 0.0004" | Black | Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 370 | 0000000 | 000000 | 00000000 | 000000 |
Rectangular with Two Ledges | |||||||||||
Laboratory Grade AA | |||||||||||
18" | 12" | 4" | 0.00005" | Black | Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 83 | 0000000 | 000000 | 00000000 | 00000 |
24" | 18" | 4" | 0.000075" | Black | Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 175 | 0000000 | 000000 | 00000000 | 00000 |
Inspection Grade A | |||||||||||
18" | 12" | 4" | 0.0001" | Black | Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 83 | 0000000 | 000000 | 00000000 | 00000 |
24" | 18" | 4" | 0.00015" | Black | Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 175 | 0000000 | 000000 | 00000000 | 00000 |
36" | 24" | 6" | 0.0002" | Black | Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 530 | 0000000 | 000000 | 00000000 | 000000 |
48" | 36" | 6" | 0.0004" | Black | Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 1,063 | 0000000 | 00000000 | 00000000 | 000000 |
Toolroom Grade B | |||||||||||
18" | 12" | 3" | 0.0002" | Black | Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 66 | 0000000 | 000000 | 00000000 | 00000 |
24" | 18" | 3" | 0.0003" | Black | Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 130 | 0000000 | 000000 | 00000000 | 00000 |
36" | 24" | 4" | 0.0004" | Black | Fed. Spec. GGG-P-463C, ISO 10012 | Certificate of Accuracy Traceable to NIST | 357 | 0000000 | 000000 | 00000000 | 000000 |