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ITP Straight Styli - Type A - Silicon Nitride Ball - M5 Thread x 82mm Overall Length - THM5S4012080
| Styli Type | Type A |
| Thread Size | M5 |
| Ball Diameter (DK) | 4 |
| Overall Length (L) | 82 |
| Shank Diameter (DG) | 12 |
| Measuring Length (ML) | 71 |
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The ITP Straight Styli Type A with a silicon nitride ball is a precision probing accessory designed for CMM work, offering dependable straight-line performance for everyday measurement tasks. Built around a rigid carbide stem, it supports a wide range of dimensions while keeping measurement geometry stable.
- Thread Size: M5 threaded shank for secure, compatible mounting on standard probe heads.
- Overall Length: 82 mm total length to reach into tight pockets and recessed features.
- Stem Material: Extremely rigid carbide stem that resists deflection during probing.
- Ball Material: Silicon nitride ball, praised for durability and smooth scanning on challenging surfaces.
- Ball Diameters Supported: Styli in this group feature ball sizes from Ø1.5 mm up to Ø10.0 mm.
- Holder Compatibility: Depending on the measuring system, holders are available in Ø10.0 mm, Ø11.0 mm, and Ø12.0 mm.
- Recommended Scan Surface: Silicon nitride balls are particularly recommended for scanning untreated aluminium parts to minimize wear and wear-induced measurement variation.
- Customization: Other sizes can be requested via the configurator or by email for tailored applications.
Designed for reliability and consistency, this straight stylus delivers repeatable contact geometry across a broad range of feature sizes. The combination of a rigid carbide stem and a silicon nitride ball helps maintain accurate measurements on aluminium surfaces, while the 82 mm reach provides versatility in accessing deeper features. With multiple ball sizes and holder options, you can tailor the stylus to specific probing tasks and workflows. If your application requires a non-standard size, you can request it through the configurator or by contacting support.
| Styli Type | Type A |
| Thread Size | M5 |
| Ball Diameter (DK) | 4 |
| Overall Length (L) | 82 |
| Shank Diameter (DG) | 12 |
| Measuring Length (ML) | 71 |
| Neck Diameter (DS) | 2.5 |
| Stem Material | carbide |
| Base Material | titanium |
| Prob Ball Material | silicon nitride |
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.


