The inside extra long jaws digital caliper is a measuring instrument designed for workshop and quality control applications where it is necessary to measure internal diameters in depth or in difficult-to-access areas.
Equipped with long and thin internal jaws, it allows measurements in deep seats, cavities and holes with restricted access, making it particularly useful where standard calipers cannot correctly reach the measuring area. This configuration is specifically designed to operate in narrow and difficult-to-reach spaces.
Manufactured in stainless steel, it guarantees robustness and long-term stability even in continuous use. The LCD display provides a clear and immediate reading of values.
The 0.01 mm resolution and mm/inch conversion allow fast and accurate measurements of internal diameters, improving dimensional inspection reliability even on complex components.
Thanks to the jaw length, this caliper is particularly suitable for inspections on deep holes, internal grooves and cavities, where correct contact must be maintained even far from the component edge.
Applications
- Measurement of internal diameters in depth
- Inspection of grooves, seats and deep internal cavities
- Dimensional inspections on holes and components with difficult access
- Quality control in workshop and production
FAQ – Inside extra long jaws digital caliper
When should a caliper with extra long jaws for internal measurements be chosen?
When the dimension to be checked is located deep inside the component or far from the edge, where a standard caliper cannot reach correctly.
What are long jaws used for on an internal caliper?
They are used to reach deep internal measuring areas, making it possible to inspect dimensions that would be impossible to verify with a traditional caliper.
On which components is it most commonly used?
It is mainly used on deep holes, internal cavities, seats and grooves where the measuring point is difficult to reach.
What is the advantage compared to a standard internal caliper?
It allows measurements deeper inside the component while maintaining proper contact even when access is limited.
Is it suitable only for deep holes?
No, it is also useful on other internal geometries where the jaw length helps reach the measuring point more easily.
In which industrial contexts is it most commonly used?
It is commonly used in mechanical workshops, quality control and production, when internal diameters on complex components must be inspected.
For which dimensional inspections is it most commonly selected?
For inspections on internal diameters in depth, cavity inspections and measurements in poorly accessible internal areas.
Can it improve inspections on difficult internal dimensions?
Yes, because the longer jaws allow the measuring point to be reached more directly compared to standard models.
Is it a good solution for repetitive inspections in production?
Yes, especially when the same type of component requires frequent inspections on deep holes or cavities.
Why choose a dedicated extra long jaws caliper instead of adapting a standard one?
Because when internal accessibility is critical, a dedicated instrument allows more correct measurements and greater operational continuity.
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| Product code | Range (mm) | Jaws (mm) |
| SA295-08150 | 12-150 | 60 |
| SA295-15200 | 15-200 | 75 |
