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ITP Straight Styli - Type A - Ruby Ball - M3 Thread x 21mm Overall Length - THM303004021
| Styli Type | Type A |
| Thread Size | M3 |
| Ball Diameter (DK) | 3 |
| Overall Length (L) | 21 |
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Description
The ITP Straight Styli Type A with Ruby Ball is a precision carbide stylus designed for everyday metrology tasks. It combines rugged rigidity with a high-quality ruby ball for reliable, repeatable measurements in inspection and probing workflows.
- Model / Code: ITP Straight Styli - Type A - Ruby Ball - M3 Thread x 21mm Overall Length (THM303004021).
- Material: Carbide stem for exceptional rigidity and stable contact during measurement.
- Ball Tip: Ruby ball tip available in sizes from Ø0.5 mm to Ø6.0 mm for precise probing and wear resistance.
- Thread: M3 threading for easy integration with compatible probes and fixtures.
- Overall Length: 21 mm, providing a compact form factor suitable for tight workspaces.
- Customization: Additional ruby ball sizes can be requested via configurator or by email.
The stylus is engineered to minimize deflection under typical probing loads, delivering consistent readings across a range of dimensions. The ruby ball tip balances hardness and smoothness, reducing wear on both the stylus and the workpiece while offering precise contact for high-accuracy measurements. With a standard M3 thread and a 21 mm overall length, this stylus integrates seamlessly into common metrology setups, making it a dependable choice for technicians, engineers, and quality control professionals who rely on repeatable, long-lasting performance. For specialized applications, additional ruby ball diameters are available on request to tailor the tool to your specific measurement tasks.
Part Numbers
- Protool Part Number
- ITP-THM303004021
- 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.
