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ITP Straight Styli - Type A - Ruby Ball - M5 Thread x 57mm Overall Length - THM504012055
| Styli Type | Type A |
| Thread Size | M5 |
| Ball Diameter (DK) | 4 |
| Overall Length (L) | 57 |
| Shank Diameter (DG) | 12 |
| Measuring Length (ML) | 44 |
Learn more about Klarna
Meet the ITP Straight Styli Type A with Ruby Ball—an ultra-rigid, M5-threaded stylus crafted for reliable, everyday probing in metrology and manufacturing settings. Designed for technicians and engineers who demand consistent contact and long-lasting durability in CMM and machine-tool environments.
- Design: Straight stylus geometry for predictable contact in probing routines
- Material: Carbide stem delivering exceptional rigidity and minimal deflection
- Tip: Ruby ball provides hard, wear-resistant, smooth contact with workpieces
- Ball Size Range: Available ruby balls from Ø1.5 mm to Ø8.0 mm; other sizes can be requested via configurator or by email
- Thread: M5 thread for secure, compatible mounting with standard probe systems
- Overall Length: 57 mm, offering practical reach for a wide range of features
Employing a carbide stem and ruby ball, this stylus minimizes deflection and measurement variability, helping you achieve repeatable touches and longer stylus life. The compact 57 mm length provides access to recessed features without sacrificing rigidity, while the M5 mounting ensures broad compatibility with common probing setups. If your application requires a different ruby-ball size, you can tailor the stylus to your needs via the configurator or by email, ensuring you have the right contact geometry for tiny features or larger pockets.
| Styli Type | Type A |
| Thread Size | M5 |
| Ball Diameter (DK) | 4 |
| Overall Length (L) | 57 |
| Shank Diameter (DG) | 12 |
| Measuring Length (ML) | 44 |
| Neck Diameter (DS) | 3 |
| Stem Material | carbide |
| Base Material | titanium |
| Prob Ball Material | ruby |
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.


