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ITP Straight Styli - Type A - Ruby Ball - M4 Thread x 22mm Overall Length - THM404007020
| Styli Type | Type A |
| Thread Size | M4 |
| Ball Diameter (DK) | 4 |
| Overall Length (L) | 22 |
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Description
ITP Straight Styli - Type A with Ruby Ball is a precision probing accessory designed for metrology professionals who need a reliable, ready-to-use stylus. Built around a carbide stem for maximum rigidity and paired with a high-quality ruby contact ball, it delivers repeatable, accurate measurements in everyday use.
- Thread: M4 thread for secure mounting on standard probe heads.
- Ball tip: Ruby ball contact, chosen for durability and smooth probing, available in a range of diameters from Ø1.0 mm to Ø8.0 mm.
- Overall length: 22 mm, providing a compact, balanced probing profile.
- Material: Carbide stem for exceptional rigidity and wear resistance during repeated measurements.
- Assembly: Hand-tightened with an SW5,5 open-end spanner for quick, secure installation.
- Customization: Other sizes can be requested via the configurator or by e-mail to suit specific probing tasks.
Designed to minimize deflection and deliver stable contact across a wide range of dimensions, this stylus supports precise, repeatable results in CMM work, surface scanning, and inspection routines. The ruby ball delivers a smooth, low-wear interface with the workpiece, helping maintain accuracy over many measurement cycles. Its compact 22 mm length and reliable M4 mounting make it a practical choice for tight workspaces and routine metrology setups. For specialized requirements, you can request alternative ruby ball diameters through the configurator or by email, ensuring the right tip for your specific application.
Part Numbers
- Protool Part Number
- ITP-THM404007020
- 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.
