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ITP Straight Styli - Type A - Ruby Ball - M3 Thread x 31.5mm Overall Length - THM303004031
| Styli Type | Type A |
| Thread Size | M3 |
| Ball Diameter (DK) | 3 |
| Overall Length (L) | 31.5 |
| Shank Diameter (DG) | 4 |
| Measuring Length (ML) | 24 |
Learn more about Klarna
The ITP Straight Styli - Type A with Ruby Ball is a precision probing stylus built for metrology and inspection teams that rely on repeatable, rigid touchpoints. Designed for everyday use, this ruby-tipped stylus delivers dependable performance in CMM, CNC probing, and manual measurement setups.
- Tip type: Ruby ball tips offered from Ø0.5 mm to Ø6.0 mm for precise contact sizing and versatile probing options.
- Stem material: Carbide stem provides exceptional rigidity to minimize bending and deflection during measurement.
- Thread: M3 external thread for secure mounting into standard probe heads and adapters.
- Overall length: 31.5 mm, delivering a compact profile with good reach for tight spaces.
- Design: Type A straight geometry ensures consistent contact orientation for repeatable results.
- Customization: Additional sizes available by configurator or email to match specific measurement needs.
With a carbide core and high-precision ruby ball, this stylus delivers stable, repeatable contact even in demanding environments. The 31.5 mm length balances reach and control, making it suitable for probing small features, delicate surfaces, and challenging geometries. The M3 mounting interface ensures broad compatibility with common probing systems, enabling quick swaps and reliable performance across multiple setups. Whether calibrating equipment, performing reverse engineering measurements, or conducting routine inspection, this stylus helps maintain accuracy and efficiency through consistent touchpoints and long-term durability.
| Styli Type | Type A |
| Thread Size | M3 |
| Ball Diameter (DK) | 3 |
| Overall Length (L) | 31.5 |
| Shank Diameter (DG) | 4 |
| Measuring Length (ML) | 24 |
| Neck Diameter (DS) | 2 |
| 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.
