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ITP Straight Styli - Type A - Ruby Ball - M4 Thread x 153mm Overall Length - TCM406007153
| Styli Type | Type A |
| Thread Size | M4 |
| Ball Diameter (DK) | 6 |
| Overall Length (L) | 153 |
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Description
The ITP Straight Styli Type A with a ruby ball is a precision probing accessory designed for extended-reach metrology. Lightweight yet incredibly rigid, it delivers dependable accuracy for long, demanding inspections.
- Overall length: 153 mm
- Thread: M4 shaft for secure, compatible attachment
- Material: Carbon fiber stem offers excellent stiffness-to-weight ratio for minimal deflection
- Ball type: High-quality ruby ball for durable, repeatable contact
- Ball size range: Ruby balls available from Ø3.0 mm to Ø12.0 mm to match application needs
- Construction: Straight stylus designed for stability in extended reach configurations
- Customization: Other dimensions can be requested via the configurator or by e-mail
Designed to reduce probe load while maintaining rigidity, this stylus minimizes deflection during measurements, helping you achieve consistent results across complex geometries. The ruby ball’s hardness supports long service life and repeatable contacts, which is essential for high-accuracy inspections. With an M4 thread, it integrates smoothly with standard probing systems, and the option to choose different ruby ball diameters ensures you can tailor contact geometry to your specific parts. When your setup requires non-standard lengths or ball sizes, the configurator or a quick email enquiry makes it easy to tailor the stylus to your exact needs.
Part Numbers
- Protool Part Number
- ITP-TCM406007153
- Brand
- ITP
- Category
- Styli
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
Delivery
Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.
Returns
14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.
Technical Support
Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.
Trade Accounts
Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.
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.


