Please log in here to access all benefits, including promotional discounts and faster checkouts.

ITP Straight Styli - Type A - Ruby Ball - M5 Thread x 50mm Overall Length - THM503011050
| Styli Type | Type A |
| Thread Size | M5 |
| Ball Diameter (DK) | 3 |
| Overall Length (L) | 50 |
Learn more about Klarna
Description
The ITP Straight Styli Type A with a ruby ball is a precision measuring stylus designed for everyday probing tasks. Built for reliability and repeatable results, it’s ideal for technicians and engineers relying on accurate measurement during routine inspections and setups.
- Thread: M5 male thread for quick, secure mounting on standard probe heads
- Stem material: Carbide stem delivering exceptional rigidity and dimensional stability
- Tip: High-quality ruby ball for precise contact geometry, available in Ø2.0 mm to Ø10.0 mm
- Overall length: 50 mm, offering a balanced reach for controlled handling
- Size options: Other ball sizes can be requested via the configurator or by email
- Product code: THM503011050
This combination of a rigid carbide stem and a durable ruby ball minimizes deflection and wear, helping you achieve consistent readings across measurement cycles. The 50 mm length and M5 thread integrate smoothly with a wide range of probing setups, making it a dependable choice for both routine checks and detailed inspections. If you need a non-standard ball size, you can request a custom option through the configurator or by contacting support.
Part Numbers
- Protool Part Number
- ITP-THM503011050
- 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.


