The Starrett 98A-12 Dial Caliper is a precision measuring tool renowned for its accuracy, durability, and versatility. This iconic instrument has been a staple in workshops, factories, and laboratories for decades, trusted by professionals and hobbyists alike. In this comprehensive review, we’ll delve into the features, pros and cons, and frequently asked questions about the Starrett 98A-12 Dial Caliper to help you determine if it’s the right tool for your needs.
A Legacy of Precision: The Starrett Story
The L.S. Starrett Company, founded in 1880 by Laroy S. Starrett, has a rich history of manufacturing high-quality precision tools. From its humble beginnings in a small workshop in Athol, Massachusetts, Starrett grew into a global leader in the industry, synonymous with accuracy and craftsmanship. The company’s commitment to innovation and quality is evident in every product they produce, including the 98A-12 Dial Caliper.
Understanding the Starrett 98A-12 Dial Caliper
The Starrett 98A-12 Dial Caliper is a mechanical measuring instrument used to determine the dimensions of objects with high accuracy. It features a graduated beam, a sliding jaw, and a dial indicator that displays the measurement reading. Hardened stainless steel makes the caliper durable and resistant to corrosion.
Key Features:
- Range: 0-12 inches / 0-300mm
- Accuracy: +/- 0.001 inch / 0.02mm
- Resolution: 0.001 inch / 0.02mm
- Material: Hardened stainless steel
- Dial Indicator: Clear and easy-to-read dial with a white face and black graduations
- Thumb Roll: Provides smooth and precise jaw movement
- Lock Screw: Secures the sliding jaw in place for consistent measurements
- Inside, Outside, and Depth Measurement: Versatile design for various measurement applications
Pros and Cons of the Starrett 98A-12 Dial Caliper
Pros:
- Exceptional Accuracy: The Starrett 98A-12’s high accuracy makes it suitable for demanding applications where precision is critical.
- Durability: Hardened stainless steel construction ensures the caliper can withstand wear and tear in harsh workshop environments.
- Ease of Use: The dial indicator provides a clear and easy-to-read measurement, while the thumb roll allows for smooth and precise adjustments.
- Versatility: You can use the caliper to measure inside dimensions, outside dimensions, and depths, making it a versatile tool for various tasks.
- Made in the USA: The Starrett 98A-12 is proudly made in the United States, ensuring high quality and craftsmanship.
Cons:
- Price: The Starrett 98A-12 is a premium tool and comes with a higher price tag compared to some other dial calipers on the market.
- Maintenance: Like any precision instrument, the caliper requires regular cleaning and lubrication to maintain its accuracy and longevity.
- Shock Resistance: While durable, the dial indicator can be sensitive to shocks and impacts, potentially affecting its accuracy.
- Limited Range: The 0-12 inch / 0-300mm range may not be sufficient for all applications.
Starrett 98A-12 Dial Caliper Reviews
The Starrett 98A-12 Caliper consistently receives high praise from users across various industries.
Here are some common themes from customer reviews:
- Accuracy and Precision: Users consistently highlight the caliper’s exceptional accuracy and precision, making it a reliable tool for critical measurements.
- Durability and Longevity: Many reviewers attest to the caliper’s durability, with some reporting using the same tool for decades without any issues.
- Ease of Use: Users frequently praise the clear dial indicator and smooth thumb roll for their ease of use, even those new to dial calipers.
- Quality Craftsmanship: Positive feedback on the caliper’s construction and finish reflects Starrett’s reputation for quality craftsmanship.
Related: What are the 4 Ways to Measure with Calipers?
Comparing the Starrett 98A-12 to Other Dial Calipers
While the Starrett 98A-12 is a top-of-the-line dial caliper, it’s essential to compare it to other options available on the market.
Here’s how it stacks up against some popular competitors:
- Mitutoyo 505-647-50: Mitutoyo’s 505-647-50 dial caliper delivers high quality, known for its accuracy and durability. It offers similar features to the Starrett 98A-12 but with a slightly lower price tag.
- Fowler 52-220-012: The Fowler 52-220-012 is a more budget-friendly option that still provides decent accuracy and functionality. However, it may not be as durable as the Starrett or Mitutoyo calipers.
- SPI 01-010-07: The SPI 01-010-07 is a basic dial caliper that is suitable for general-purpose use. It’s the most affordable option on this list, but it may not offer the same level of accuracy or durability as the higher-end models.
Ultimately, the best dial caliper for you will depend on your specific needs and budget. If you require the highest level of accuracy and durability, the Starrett 98A-12 is an excellent investment. However, if you’re on a tighter budget or only need a caliper for occasional use, the Mitutoyo, Fowler, or SPI models may be suitable alternatives.
Frequently Asked Questions (FAQ) about the Starrett 98A-12 Caliper
- What is the warranty on the Starrett 98A-12 Dial Caliper?
Starrett offers a one-year warranty against defects in materials and workmanship for the 98A-12 Dial Caliper.
- How do I calibrate the Starrett 98A-12 Dial Caliper?
A qualified technician should perform calibration using appropriate standards and procedures. Refer to the user manual for detailed instructions on calibration.
- Can the Starrett 98A-12 Dial Caliper be used for metric measurements?
Yes, the Starrett 98A-12 has dual graduations in both inches and millimeters, making it suitable for both imperial and metric measurements.
- What is the difference between the Starrett 98A-12 and the Starrett 120A-12 Dial Calipers?
The Starrett 120A-12 is a digital caliper that offers similar functionality to the 98A-12 but with a digital display instead of a dial indicator.
- Where can I purchase the Starrett 98A-12 Caliper?
You can purchase the Starrett 98A-12 Dial Caliper from authorized Starrett distributors, online retailers, and industrial supply stores.
- What accessories are available for the Starrett 98A-12 Caliper?
Starrett offers a variety of accessories for the 98A-12, including carrying cases, depth rods, and calibration standards.
- How do I clean and maintain the Starrett 98A-12 Caliper?
To remove dirt and debris, clean regularly with a soft cloth and mild solvent. Lubricate the sliding surfaces with a light oil periodically to ensure smooth operation.
Related: Mastering the Micrometer: A Comprehensive Guide to Precision Measurement in Inches
- What are some common applications for the Starrett 98A-12 Caliper?
Various industries and applications use the Starrett 98A-12, including:
- Machining and manufacturing
- Quality control and inspection
- Automotive repair and maintenance
- Construction and woodworking
- Scientific research and education
Conclusion
The Starrett 98A-12 Dial Caliper is a precision measuring tool that lives up to its reputation for accuracy, durability, and versatility. Its ease of use, clear dial indicator, and robust construction make it a valuable asset for professionals and hobbyists alike. While the price may be higher than some competitors, the quality and longevity of the Starrett 98A-12 make it a worthwhile investment for those who demand the best.
By understanding the features, pros and cons, and frequently asked questions about the Starrett 98A-12 Dial Caliper, you can make an informed decision about whether it’s the right tool for your needs. Whether you’re a seasoned machinist or a DIY enthusiast, the Starrett 98A-12 is a reliable and accurate measuring instrument that will provide years of dependable service.
