Japan, Obishi Keiki
Obishi Keiki Seisakusho I-Type Precision Square
Made in Japan
Manufacturer: Obishi Keiki Seisakusho
Stock No: 66
- It meets the JIS standard Grades 1 and 2 for accuracy.
It upholds high accuracy as a JIS standard designated high-grade square.
Its thick and balanced design allows for stable measurements while standing.
Use it for measuring the perpendicularity of tools, squareness of parts attached using jigs, squareness of products, and more.
It provides sufficient accuracy for use as a master in precision machinery and measuring instruments.
We harden all sizes.
We also manufacture products with special measurement and precision requirements.
| Nominal Measurement | Measurement (H×L×W×tmm) |
Grade 1 | Grade 2 | Mass (kg) |
||
|---|---|---|---|---|---|---|
| Code NO. | squareness (μm) |
Code NO. | squareness (μm) |
|||
| 50 | 50×40×15×5 | FG101 | ±2.5 | FG201 | ±6.0 | 0.04 |
| 75 | 75×50×18×5 | FG102 | ±2.8 | FG202 | ±6.5 | 0.08 |
| 100 | 100×70×25×8 | FG103 | ±3.0 | FG203 | ±7.0 | 0.2 |
| 150 | 150×100×30×8 | FG104 | ±3.5 | FG204 | ±8.0 | 0.3 |
| 200 | 200×130×35×11 | FG105 | ±4.0 | FG205 | ±9.0 | 0.7 |
| 300 | 300×200×40×15 | FG106 | ±5.0 | FG206 | ±11.0 | 1.8 |
| 500 | 500×300×55×20 | FG107 | ±7.0 | FG207 | ±15.0 | 6.5 |
| 600 | 600×350×60×23 | FG108 | ±8.0 | FG208 | ±17.0 | 9.0 |
| 750 | 750×400×65×25 | FG109 | ±9.5 | FG209 | ±20.0 | 11.5 |
| 1000 | 1000×500×70×28 | FG110 | ±12.0 | FG210 | ±25.0 | 18.0 |
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