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

ITP Straight Styli - Type A - Ruby Ball - M3 Thread x 32.5mm Overall Length - THM301004033
| Styli Type | Type A |
| Thread Size | M3 |
| Ball Diameter (DK) | 1 |
| Overall Length (L) | 32.5 |
Learn more about Klarna
Description
ITP Straight Styli – Type A with Ruby Ball is a precision straight stylus designed for everyday measurement tasks. Built for professionals who demand consistent, durable tactile feedback in probing setups.
- Thread: M3 thread for secure, quick mounting in standard stylus holders and probe heads.
- Overall length: 32.5 mm from base to ruby contact ball, offering a compact yet versatile reach for common probing configurations.
- Stem material: Carbide stem delivers exceptional rigidity, minimizing deflection during contact for repeatable readings.
- Ball size options: Ruby balls of the highest quality, available from Ø0.5 mm to Ø6.0 mm to suit different measurement tasks.
- Customization: Additional ruby ball diameters can be requested via the configurator or by email to match specific inspection needs.
- Product code: THM301004033 for easy ordering and reference.
Designed for reliable performance across a range of inspection scenarios, this stylus maintains stable contact geometry thanks to its rigid carbide stem and hard ruby ball. The straight design minimizes angular error, enhancing measurement accuracy in routine QA checks or precision assemblies. With a selectable range of ruby ball diameters, you can tailor the contact footprint to delicate features or tougher surfaces, while the standard M3 mounting ensures compatibility with a wide array of probing systems. If your measurement program requires a size beyond the standard options, you can request a custom diameter through the configurator or by email, giving you a flexible tool for precise, repeatable results.
Part Numbers
- Protool Part Number
- ITP-THM301004033
- 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.


