Please log in here to access all benefits, including promotional discounts and faster checkouts.
ITP Straight Styli - Type A - Ruby Ball - M5 Thread x 31.25mm Overall Length - THM502510031
| Styli Type | Type A |
| Thread Size | M5 |
| Ball Diameter (DK) | 2.5 |
| Overall Length (L) | 31.25 |
Learn more about Klarna
Description
The ITP Straight Styli Type A with a ruby ball is a precision probing stylus designed for everyday metrology tasks. Built around a carbide stem for exceptional rigidity and a high-quality ruby ball, it delivers reliable, repeatable contact in tight measurement spaces.
- Overall Length: 31.25 mm
- Thread: M5, for compatibility with standard probe holders
- Stem Material: Carbide for maximum rigidity and minimal deflection
- Tip Material: Ruby ball available in sizes from Ø0.7 mm to Ø3.0 mm
- Design: Straight stylus optimized for everyday probing tasks
- Customization: Other ruby ball sizes can be requested via configurator or by email
This configuration delivers stable, wear-resistant contact that helps maintain measurement accuracy across repeated use. The hard ruby ball provides consistent tactile feedback and resists wear, while the carbide stem minimizes bending under probing forces. With a compact 31.25 mm length and an M5 thread, it integrates smoothly with common metrology systems, making it a dependable choice for CMM touch probes, handheld testers, and precision inspections. Ideal for probing small features, edges, shoulders, and radii with repeatable results in manufacturing or lab environments.
Part Numbers
- Protool Part Number
- ITP-THM502510031
- 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.
