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ITP Straight Styli - Type A - Ruby Ball - M3 Thread x 42.5mm Overall Length - THM305004042
| Styli Type | Type A |
| Thread Size | M3 |
| Ball Diameter (DK) | 5 |
| Overall Length (L) | 42.5 |
| Shank Diameter (DG) | 4 |
| Measuring Length (ML) | 35 |
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ITP Straight Stylus Type A with Ruby Ball is a precision tactile accessory designed for metrology and micro-machining professionals who need reliable, repeatable probing in daily measurement tasks.
- Model / Order reference: THM305004042
- Geometry: Straight stylus for stable contact and consistent measurements
- Material: Carbide stem delivers exceptional rigidity and long service life
- Ball: Ruby ball options from Ø0.5 mm up to Ø6.0 mm for precise contact geometry
- Thread: M3 thread for secure mounting on compatible probes and fixtures
- Overall length: 42.5 mm, providing reach in tight spaces and dense assemblies
- Customization: Additional ruby-ball sizes available via configurator or by email
This straight stylus is built to minimize deflection under load, helping you maintain accuracy across a wide range of feature sizes. The high-quality ruby ball offers a hard, smooth contact surface that resists wear, extending the stylus life and reducing workpiece wear during repeated probing. The combination of a carbide stem and ruby ball enables precise measurements from tiny pits and sharp corners to flat faces, making it a versatile choice for everyday metrology workflows. The standard M3 mounting thread ensures easy integration with common probing heads, while the 42.5 mm length suits compact fixtures and accessible features. If your measurement tasks require a different ruby-ball diameter, you can order additional sizes through the configurator or by email to tailor the stylus to your specific use cases.
| Styli Type | Type A |
| Thread Size | M3 |
| Ball Diameter (DK) | 5 |
| Overall Length (L) | 42.5 |
| Shank Diameter (DG) | 4 |
| Measuring Length (ML) | 35 |
| Neck Diameter (DS) | 2.5 |
| Stem Material | carbide |
| Base Material | stainless steel |
| 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.
