Description
HHIP 4401-4545 17.7 x 17.7 x 3.15″ Grade A Granite Surface Plate is a precision-grade granite surface plate designed to provide an exceptionally flat and stable reference surface for measuring, layout, and inspection tasks. With a flatness accuracy of ±0.0001″, this Grade A (Grade 0) plate ensures highly reliable measurements and serves as a durable work surface for a variety of industrial and laboratory applications.
Features:
- Precision ground top surface for high flatness and accuracy (±0.0001″).
- Grade A (Grade 0) granite for maximum stability and durability.
- Meets or exceeds Federal Specifications GGG-P-463C; comes with a certificate of inspection.
- Non-magnetic and non-conductive, ideal for sensitive measurements.
- Harder than steel, resists nicks, burrs, and wear.
- Versatile applications: measuring flatness, squareness, layout, calibration, and tool setup.
- Checked with auto collimator to ensure overall accuracy.
Benefits:
- Provides a highly accurate reference surface for precise measurements and inspections.
- Durable granite construction ensures long-term performance without warping or deformation.
- Non-magnetic and non-conductive properties protect delicate instruments and workpieces.
- Versatile use for assembly, marking, and setup of parts and tools.
Technical Specifications:
- Model: 4401-4545
- Dimensions: 17.7″ x 17.7″ x 3.15″
- Material: Grade A granite
- Flatness Accuracy: ±0.0001″
- Magnetic/Conductive: Non-magnetic, non-conductive
- Compliance: Meets/exceeds Federal Specifications GGG-P-463C






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