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ITP Straight Styli - Type A - Ruby Ball - M3 Thread x 30.75mm Overall Length - THM301504031
| Styli Type | Type A |
| Thread Size | M3 |
| Ball Diameter (DK) | 1.5 |
| Overall Length (L) | 30.75 |
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Description
ITP Straight Stylus Type A with a ruby ball is a precision probing accessory designed for standard measurement tasks. Built for reliability, it combines a carbide stem with a high-quality ruby contact ball to deliver repeatable touchpoints in compatible probing systems.
- Thread: M3 threaded mounting fits common probe interfaces.
- Overall Length: 30.75 mm to reach tight spaces without compromising accuracy.
- Stem Material: Carbide stem for extreme rigidity and stable measurements.
- Ruby Ball Diameters: available in sizes from Ø0.5 mm to Ø6.0 mm, using high-quality ruby for wear resistance and smooth contact.
- Design: Straight stylus (Type A) for consistent contact geometry in everyday probing tasks.
- Part Number: THM301504031
- Customization: Further ruby-ball sizes can be requested via the configurator or by email.
When used with coordinate measuring machines (CMMs) and other probing systems, this stylus minimizes deflection and maintains stable contact across measurements, improving repeatability and reducing drift. The carbide stem resists flex under load, while the ruby ball’s hardness reduces wear and preserves a smooth, repeatable signal across cycles. The 30.75 mm length offers practical reach for standard setups, and the M3 thread ensures quick, secure installation with minimal tools. The ability to select ruby-ball diameters from 0.5 mm to 6.0 mm provides flexibility to match the feature size on your parts, from fine grooves to broader surfaces. If your workflow requires a non-standard size, sizes can be requested through the configurator or by email.
Part Numbers
- Protool Part Number
- ITP-THM301504031
- 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.
