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ITP Calibration Sphere ceramic Ball Material - M8 x 25mm Ball Diameter
| Thread Size | M8 |
| Ball Diameter (DK) | 25 |
| Overall Length (L) | 140 |
| SW | 22 |
| Shank Diameter (DG) | 24 |
| Base Material | stainless steel |
Learn more about Klarna
The ITP Calibration Sphere is a ceramic reference ball with an M8 mounting thread, designed to calibrate measuring probes with reliability and precision. Ideal for metrology labs and manufacturing environments that demand repeatable probe accuracy.
- Ball material: Aluminum oxide (ceramic) for high hardness and dimensional stability
- Ball diameter: 25 mm
- Mounting thread: M8 x 25 mm for secure attachment to probe holders
- Certification: Supplied with a factory calibration certificate for traceability
- Applications: Calibrating touch probes, CMMs, and other measuring instruments
- Usage: Designed for repeatable, reliable reference measurements in routine calibration tasks
With this calibration sphere, you can achieve consistent probe readings across sessions, maintain QA documentation with verifiable traceability, and rely on a durable ceramic reference that resists wear over time. Its precise construction and standard M8 mounting make it a practical, drop-in solution for everyday calibration workflows in precision manufacturing and inspection environments.
| Thread Size | M8 |
| Ball Diameter (DK) | 25 |
| Overall Length (L) | 140 |
| SW | 22 |
| Shank Diameter (DG) | 24 |
| Base Material | stainless steel |
| Prob Ball Material | ceramic |
What time are Protool open?
We are open Monday to Friday between 8:30am and 5pm.
Do you offer Free Next Day delivery?
Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.
We also offer the following:
- Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
- DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
- Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
- DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.
For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.
*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.
