Description
Product Overview
The INSIZE 6902-85A is a high‑precision granite surface plate engineered for demanding calibration and measurement applications. Measuring 24.8″ L x 16.5″ W x 12.2″ H, the plate offers a generous work surface while maintaining strict flatness tolerances. Constructed from premium granite sourced in China, it resists wear, temperature fluctuations, and mechanical stress, ensuring consistent performance over years of use. The plate’s weight of 113.54 lbs provides the stability needed for accurate readings in industrial and scientific environments.
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Usage
This surface plate is ideal for calibration labs, quality‑control stations, machine shops, and research facilities. It supports height gauges, dial indicators, coordinate measuring machines, and other precision instruments. Whether you are verifying tool dimensions, aligning equipment, or conducting dimensional inspections, the 6902‑85A delivers a reliable reference surface. Its size accommodates both small fixtures and larger assemblies, making it versatile for a variety of tasks.
Why Choose Us
INSIZE combines decades of expertise in metrology equipment with rigorous quality control. Each plate undergoes a multi‑stage inspection to verify flatness, surface integrity, and dimensional accuracy. The 6902‑85A is backed by a comprehensive warranty and responsive customer support, ensuring you receive assistance for installation, maintenance, or any technical queries. Choosing INSIZE means investing in a product that upholds the highest standards of precision and durability.
Key Features
- Large 24.8″ x 16.5″ work area maximizes flexibility for diverse measurement tasks.
- Premium granite construction provides exceptional flatness and resistance to wear.
- Heavy 113.54 lb weight ensures stable positioning and minimizes vibration.
- Designed for industrial and scientific use, compatible with a wide range of metrology tools.
- Comprehensive warranty and dedicated after‑sales support for peace of mind.
FAQ
What is the flatness tolerance of the 6902‑85A plate?
The plate meets industry‑standard flatness specifications for granite surface plates, typically within 0.0005 inches over the entire surface.
Can the plate be used in temperature‑controlled environments?
Yes, granite plates perform well in controlled environments and help maintain measurement accuracy despite minor temperature variations.
How should the plate be cleaned and maintained?
Wipe the surface with a soft, lint‑free cloth and a mild detergent solution. Avoid abrasive cleaners that could damage the granite.
Is the plate shipped with a protective cover?
Yes, each plate includes a custom‑fit protective cover to guard against dust and scratches during transport and storage.
What warranty does INSIZE provide?
INSIZE offers a one‑year limited warranty covering manufacturing defects and provides access to technical support throughout the warranty period.





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