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ITP Calibration Sphere ceramic Ball Material - M8 x 30mm Ball Diameter
| Thread Size | M8 |
| Ball Diameter (DK) | 30 |
| Overall Length (L) | 145 |
| SW | 22 |
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Description
The ITP Calibration Sphere ceramic ball is a precision reference for calibrating tactile probes and measurement devices. Manufactured as a robust aluminum oxide (ceramic) sphere, it’s built for metrology labs and industrial setups that demand repeatable accuracy.
- Ball diameter: 30 mm diameter spherical reference used for consistent contact during calibration.
- Threaded mount: M8 male thread on the top for secure attachment to probes, fixtures, or stylus holders.
- Material: Aluminum oxide (ceramic) with high hardness and dimensional stability.
- Certification: Supplied with a factory calibration certificate for traceability.
- Surface finish: Precision-ground, smooth surface to minimize contact variation during measurement.
Using this calibration sphere ensures your probing systems deliver accurate, repeatable measurements across sessions and equipment. The ceramic ball resists wear from repeated touching, helping maintain a stable reference over time. The included factory certificate provides traceability for quality management, while the M8 mounting thread enables quick, repeatable setup in a range of probe configurations—so calibration becomes a reliable step in your measurement workflow.
Part Numbers
- Protool Part Number
- ITP-KNM830024145
- Brand
- ITP
- Category
- Styli
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
Delivery
Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.
Returns
14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.
Technical Support
Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.
Trade Accounts
Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.
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.
