Original price was: $ 319.93.$ 274.85Current price is: $ 274.85.
Mitutoyo 145-188 Caliper Jaw Inside Micrometer – precision inside diameter measurements with durable steel jaws, wide measuring range, and high accuracy for professional applications.
The Mitutoyo 145-188 Caliper Jaw Inside Micrometer is a precision measuring tool designed to deliver accurate internal diameter measurements across a wide range of applications. Built with hardened steel jaws and high-quality craftsmanship, it ensures repeatable performance and long service life. Whether used in manufacturing, R&D, or quality inspection, this tool provides reliable results that support strict dimensional standards and reduce costly measurement errors.
The Mitutoyo 145-188 stands out because of its unmatched reliability, precision engineering, and versatile measuring range. It’s not just a tool—it’s a solution trusted by professionals worldwide to verify accuracy where even the smallest deviations matter. With its ergonomic design, durable materials, and Mitutoyo’s legacy of excellence, it empowers engineers, technicians, and researchers to maintain confidence in every measurement.
The challenge of accurately measuring internal diameters in small or complex components is solved by the Mitutoyo 145-188. Traditional measuring tools often fail to reach deep or narrow internal spaces with precision, leading to errors or rework. This micrometer eliminates that issue by combining accessibility, accuracy, and repeatability. It ensures manufacturers, inspectors, and designers achieve flawless internal measurement without compromising speed, quality, or safety.
In advanced manufacturing lines, maintaining tight tolerances is essential for quality assurance. The Mitutoyo 145-188 ensures accurate measurement of internal diameters in machined parts, helping engineers verify component consistency, prevent costly defects, and meet international quality standards. Its durable construction allows repeated use without compromising measurement reliability.
Automotive and aerospace industries require extreme precision to ensure safety and performance. This micrometer enables technicians to measure engine cylinders, bearings, and other internal components with exceptional accuracy. Its ability to deliver repeatable results reduces rework and ensures compliance with rigorous safety and performance standards.
In R&D environments, prototype components often require close inspection for dimensional verification. The Mitutoyo 145-188 offers researchers and engineers a reliable way to validate design accuracy. By ensuring internal dimensions match CAD specifications, it speeds up development cycles, minimizes design flaws, and supports innovation in new product development.
Tool and die makers rely heavily on precise internal measurements when producing molds and dies. The Mitutoyo 145-188 ensures that internal profiles and cavities are accurately measured, preventing dimensional errors that could affect production. Its high precision supports long-term durability of tools, reducing downtime and improving productivity in high-demand environments.
| Inch-Metric: |
Metric
|
| Range: |
75 – 100 mm
|
| Graduation: |
0,01 mm
|
| Maximum Permissible Error J MPE: |
±8 µm
|
| Measuring spindle: |
With spindle lock, spindle pitch 0,5 mm
|
| Measuring face: |
Carbide tipped
|
| Measuring force: |
1-6 N
|
| Delivered: |
Including box, key
|
| Digital/Analog: |
Analog
|
| Mass: |
180 g
|
All products of product family Series 145:
 |
Caliper Jaw Inside Micrometer |  |
Caliper Jaw Inside Micrometer |
| 5-30mm | 200-225mm | ||
| Mitutoyo Caliper Jaw Inside Micrometer Part Number: 145-185 | Mitutoyo Caliper Jaw Inside Micrometer Part Number: 145-217 | ||
| More Info | For more : Contact us | ||
 |
Caliper Jaw Inside Micrometer |
 |
Caliper Jaw Inside Micrometer |
| 25-50mm | 225-250mm | ||
| Mitutoyo Caliper Jaw Inside Micrometer Part Number: 145-186 | Mitutoyo Caliper Jaw Inside Micrometer Part Number: 145-218 | ||
| More Info | For more : Contact us | ||
 |
Caliper Jaw Inside Micrometer |  |
Caliper Jaw Inside Micrometer |
| 50-75mm | 250-275mm | ||
| Mitutoyo Caliper Jaw Inside Micrometer Part Number: 145-187 | Mitutoyo Caliper Jaw Inside Micrometer Part Number: 145-219 | ||
| More Info | For more : Contact us | ||
 |
Caliper Jaw Inside Micrometer |  |
Caliper Jaw Inside Micrometer |
| 75-100mm | 275-300mm | ||
| Mitutoyo Caliper Jaw Inside Micrometer Part Number: 145-188 | Mitutoyo Caliper Jaw Inside Micrometer Part Number: 145-220 | ||
| More Info | For more : Contact us | ||
 |
Caliper Jaw Inside Micrometer |  |
Caliper Jaw Inside Micrometer |
| 100-125mm | 0,2-1,2″ | ||
| Mitutoyo Caliper Jaw Inside Micrometer Part Number: 145-189 | Mitutoyo Caliper Jaw Inside Micrometer Part Number: 145-193 | ||
| For more : Contact us | |||
 |
Caliper Jaw Inside Micrometer |  |
Caliper Jaw Inside Micrometer |
| 125-150mm | 1-2″ | ||
| Mitutoyo Caliper Jaw Inside Micrometer Part Number: 145-190 | Mitutoyo Caliper Jaw Inside Micrometer Part Number: 145-194 | ||
| For more : Contact us | For more : Contact us | ||
 |
Caliper Jaw Inside Micrometer |  |
Caliper Jaw Inside Micrometer |
| 150-175mm | 2-3″ | ||
| Mitutoyo Caliper Jaw Inside Micrometer Part Number: 145-191 | Mitutoyo Caliper Jaw Inside Micrometer Part Number: 145-195 | ||
| For more : Contact us | For more : Contact us | ||
 |
Caliper Jaw Inside Micrometer |  |
Caliper Jaw Inside Micrometer |
| 175-200mm | 3-4″ | ||
| Mitutoyo Caliper Jaw Inside Micrometer Part Number: 145-192 | Mitutoyo Caliper Jaw Inside Micrometer Part Number: 145-196 | ||
| For more : Contact us | For more : Contact us |
Optional accessories:
 |
Holder for Series 145 |
| 300400 | |
| For more : Contact us | |
 |
Cap for Series 145 |
| 300401 | |
| For more : Contact us |
For expert guidance before placing your order.
Warranty – 1-year warranty for your peace of mind.
Global Shipping – We ship worldwide with secure packaging and reliable delivery.
Technical Support – Contact us for professional after-sales technical assistance.
