
158-119 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $375.31 | Condition is New, Mitutoyo 158-119 - OPTICAL FLAT, FREE SHIPPING | 99.8% |
![]() | $354.15 | Top Pick! Condition is New, Mitutoyo 158-119 Optical Flat 15mm Thickness 0.2 micrometer Flatness 60mm, shipping cost = $65.00 | 99.9% |

The Mitutoyo 158-119 Optical Flat is a high-precision measuring instrument designed for ensuring the flatness and parallelism of optical surfaces. This device is an essential tool in various industries, including optics, semiconductor manufacturing, metrology labs, and research institutions.
The Mitutoyo 158-119 Optical Flat boasts a large measuring area of 150mm x 150mm (5.9 inches x 5.9 inches), allowing it to accommodate larger components for measurement. Its surface is made of high-quality, ultra-flat glass, with a specified flatness of /10 at 20 C ( is the wavelength of He-Ne laser light). This superior flatness ensures highly accurate and reliable measurements.
The optical flat comes with a built-in spirit level, which allows users to check the flatness of the measuring surface against both the horizontal and vertical axes. This feature is crucial for ensuring the accuracy of parallelism measurements. Additionally, the flat has a dedicated slot for the spirit level, which makes it easy to store and transport the instrument safely.
Mitutoyo's 158-119 Optical Flat features a sturdy and durable design, with a lightweight yet robust aluminum case. The case has a non-slip rubber bottom to prevent the instrument from sliding during use. The flat is also equipped with adjustable feet, which enable fine height adjustments, ensuring a stable and accurate measurement environment.
The Mitutoyo 158-119 Optical Flat is compatible with various measuring accessories, including autocollimators, interferometers, and other measuring instruments. This versatility makes it a versatile tool for various applications, from simple flatness checks to sophisticated alignment and parallelism measurements.
To ensure the highest level of accuracy and longevity, the optical flat includes a protective cover to shield the sensitive glass surface from dust, scratches, and other potential damage. The cover is easy to attach and remove, allowing quick access to the measuring surface when needed.
In conclusion, the Mitutoyo 158-119 Optical Flat is a high-precision, versatile, and durable measuring instrument designed for ensuring the flatness and parallelism of optical surfaces. Its large measuring area, superior flatness, and compatibility with various measuring accessories make it an indispensable tool for professionals in various industries, including optics, semiconductor manufacturing, metrology labs, and research institutions.
Mitutoyo 158-119 Optical Flat: A Comprehensive Analysis
The Mitutoyo 158-119 Optical Flat is a precision instrument used for measuring and checking the flatness, parallelism, and perpendicularity of optical components and surfaces. In this analysis, we will discuss the potential advantages and disadvantages of investing in this optical flat.
Advantages:1. High Precision: The Mitutoyo 158-119 Optical Flat is renowned for its exceptional precision. It is designed to measure flatness up to /10 ( being the wavelength of light used), ensuring that even the smallest deviations are detected.
2. Versatile: This optical flat can be used for various applications, including checking the parallelism and perpendicularity of optical components, measuring the curvature of spherical surfaces, and verifying the flatness of mirrors and polished glass.
3. Durable: Mitutoyo is a trusted brand in the field of metrology and precision instruments. The 158-119 Optical Flat is built to last, with high-quality materials and robust design.
4. Interchangeable Optical Elements: The Mitutoyo 158-119 Optical Flat comes with interchangeable optical elements, allowing users to switch between different wavelengths (400 nm, 632.8 nm, and 546.1 nm) for various applications and measurement requirements.
Disadvantages:1. Cost: The Mitutoyo 158-119 Optical Flat is a premium instrument, and its price reflects its advanced features and high precision. It may be a significant investment for some users.
2. Complexity: Operating an optical flat like the Mitutoyo 158-119 requires a certain level of expertise and understanding of metrology concepts. Users may need to invest time and resources in training or hiring skilled personnel to operate the instrument effectively.
3. Limited Portability: Due to its size and precision requirements, the Mitutoyo 158-119 Optical Flat is not a portable instrument. It is designed for use in a controlled environment, such as a laboratory or production facility.
Conclusion:The Mitutoyo 158-119 Optical Flat is a high-performance instrument suited for applications that demand the highest level of precision and accuracy. Its versatility, durability, and interchangeable optical elements make it an invaluable tool for industries such as optics, semiconductors, and precision manufacturing. However, its cost and complexity may be a barrier for some users.
Recommendation:If you are in an industry where precision and accuracy are critical, the Mitutoyo 158-119 Optical Flat may be the right investment for you. Its advanced features and exceptional performance will help ensure that your optical components meet the highest standards. However, if you are new to metrology or have limited resources, it may be worth exploring alternative, more affordable options before investing in this premium instrument.
Details:
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specifications testmultimeters:
- brand: Mitutoyo
- mpn: 158-119
- country/region of manufacture: Japan
payments testmultimeters:
- wallet: google-pay
- credit card: diners-club
- other
returns testmultimeters:
- method: money back
- paid by: seller
- time: 30 days
- policy: returns accepted
shipping testmultimeters:
- type: fixed
- transit: 3-8 days
- class: economy
- service: economy
offer testmultimeters:
- prices: $354.15–$375.31
- item condition: New
- sold #: 16
- options: ship-to-home
- in stock #: 2
- availability: in stock
- started: august 5, 2025
seller testmultimeters:
- # reviews: 11403
- rating: 99.1%
- city: worcester, pennsylvania
general testmultimeters:
- category: Business & Industrial > Test, Measurement Inspection > Detectors > Multimeters

