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ITP Straight Styli - Type A - Ruby Ball - M4 Thread x 43mm Overall Length - TKM406007040
| Styli Type | Type A |
| Thread Size | M4 |
| Ball Diameter (DK) | 6 |
| Overall Length (L) | 43 |
| Shank Diameter (DG) | 7 |
| Measuring Length (ML) | 34.5 |
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A precision straight stylus designed for everyday measurement tasks in tactile metrology. The ITP Straight Stylus Type A with a ruby contact ball delivers reliable, repeatable probing in a compact 43 mm form factor, compatible with standard M4 threaded holders.
- Thread: M4 threaded connection for universal compatibility with probe housings and fixtures used in most metrology systems.
- Overall Length: 43 mm, offering a compact reach suitable for tight spaces and recessed fixtures.
- Stem Material: High-performance ceramic provides low mass and exceptional rigidity, reducing deflection during contact.
- Contact Ball: Ruby ball with high-quality fabrication; ruby balls range from Ø6.0 mm to Ø10.0 mm, with other sizes available on request.
- Holder: Integrated holder featuring SW5.5 spanner width for secure installation and easy maintenance.
- Custom sizes: Other ruby-ball sizes can be requested through the configurator or by email to tailor the stylus to specific measurement needs.
This stylus improves measurement reliability by combining a lightweight, rigid ceramic stem with a durable ruby contact that stands up to frequent probing. The M4 thread and 43 mm overall length ensure compatibility with a wide range of probing systems, while the SW5.5 holder simplifies setup and service. Ideal for laboratories, quality control on production lines, and precision inspection tasks where consistent contact and minimal mass matter.
| Styli Type | Type A |
| Thread Size | M4 |
| Ball Diameter (DK) | 6 |
| Overall Length (L) | 43 |
| Shank Diameter (DG) | 7 |
| Measuring Length (ML) | 34.5 |
| Neck Diameter (DS) | 4 |
| Stem Material | ceramic |
| 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.
