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ITP Straight Styli - Type A - Ruby Ball - M5 Thread x 51.5mm Overall Length - THM503012050
| Styli Type | Type A |
| Thread Size | M5 |
| Ball Diameter (DK) | 3 |
| Overall Length (L) | 51.5 |
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Description
ITP Straight Stylus Type A with a ruby ball is a precision probing accessory designed for metrology tasks, edge detection, and routine scanning. Built for professionals who demand consistent, repeatable results in everyday measurement work.
- Tip material: Ruby ball tip available in high-quality diameters from Ø1.5 mm up to Ø8.0 mm for durable, repeatable contact.
- Stem construction: Carbide stem delivers exceptional rigidity to maintain measurement accuracy across a wide range of dimensions.
- Thread: M5 threading at the top provides secure compatibility with standard probe interfaces.
- Overall length: 51.5 mm total length for a compact, versatile probing option in tight spaces.
- Customization: Other tip sizes can be requested via the configurator or by e-mail to tailor the stylus to specific applications.
- Usage: Straight design optimized for everyday standard use in precision measurement setups.
This stylus, model THM503012050, combines a rigid carbide shaft with a precision ruby ball to deliver stable contact and long wear life across routine metrology tasks. Its M5 mount and 51.5 mm length make it a reliable choice for CMM probes, surface inspections, and quick-change measurement routines where consistent tip geometry matters.
Part Numbers
- Protool Part Number
- ITP-THM503012050
- 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.


