Granite Straight Gauge Block Measuring Instrument 160-630mm Range with Magnetization Resistant Properties
Precision granite measuring tools made from homogeneous Jinan green stone with 1.5-12μm accuracy. Features high strength, wear resistance, and magnetization resistance for industrial straightness and flatness inspection. Maintains precision under heavy loads and high temperatures with rust-proof and acid-resistant properties.
accuray
00 grade
Place of Origin
China
color
black
flatness
4 face
Packaging Details
metal box
weight
38kg
Product Description
Granite Straight Gauge Block Measuring Instrument
Material & Construction
Manufactured from premium "Jinan green" black granite using precision hand-grinding techniques. Square gauge includes feet, angle plates, and specialized 90-degree measurement tools.
Key Features
- High accuracy and exceptional stability for precision measurement
- Homogeneous structure with high strength and hardness
- Excellent wear resistance and magnetization resistance
- Rust-proof, acid-proof, and alkali-resistant properties
- Maintains precision under heavy loads and high temperatures
- Convenient maintenance and long service life
Applications
Used for inspecting straightness and flatness, testing workpiece verticality, equipment installation alignment, and mechanical industry scribing orientation.
Technical Specifications
| Specification (mm) | Beeline Tolerance (μm) | Squareness Tolerance (μm) | Height/Width Tolerance (μm) |
|---|---|---|---|
| 160×25×16 | 1.5-3 | 20-40 | 1.5-3 |
| 250×40×25 | 2-4 | 30-60 | 2-4 |
| 400×63×40 | 4-8 | 40-80 | 4-8 |
| 630×100×63 | 6-12 | 50-100 | 6-12 |
Available in precision grades 00 and 0 to meet various industrial requirements.
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