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

ITP Straight Styli - Type A - Ruby Ball - M5 Thread x 82mm Overall Length - THM504012080

SKU:ITP-THM504012080

The ITP Straight Styli Type A with a ruby ball tip delivers dependable, high-precision tactile probing for everyday metrology tasks. Built for professionals who need a rigid, repeatable contact i... Read more ↓
Styli TypeType A
Thread SizeM5
Ball Diameter (DK)4
Overall Length (L)82
Shank Diameter (DG)12
Measuring Length (ML)71
View all specifications ↓
£138.26
Prices shown ex. VAT
5 days estimated lead time — subject to availability
Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
Learn more about Klarna
Speak to our team
01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

The ITP Straight Styli Type A with a ruby ball tip delivers dependable, high-precision tactile probing for everyday metrology tasks. Built for professionals who need a rigid, repeatable contact in fixture setups and calibration routines.

  • Tip geometry: Straight design with a ruby ball tip for smooth, consistent contact across measurement surfaces
  • Ruby ball sizes: Available in high-quality ruby balls from Ø1.5 mm to Ø8.0 mm to match your probing needs
  • Stem material: Carbide stem for exceptional rigidity and minimal deflection during use
  • Thread compatibility: M5 thread to fit standard probe heads and adapters
  • Overall length: 82 mm, offering a balanced reach for common probing scenarios
  • Custom sizing: Other ruby ball diameters and configurations can be requested via the configurator or by e-mail

Thanks to the carbide stem’s rigidity, this stylus maintains accuracy across a wide range of dimensions and probing paths. The ruby ball tip reduces wear, ensuring repeatable measurements and long service life in regular inspection and calibration workflows. Designed for quick swaps and reliable performance in everyday metrology tasks.

Styli Type Type A
Thread Size M5
Ball Diameter (DK) 4
Overall Length (L) 82
Shank Diameter (DG) 12
Measuring Length (ML) 71
Neck Diameter (DS) 2.5
Stem Material carbide
Base Material titanium
Prob Ball Material ruby

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.

★★★★★
Nice experience staff are very helpful and interested...
Staff are very helpful and interested in providing a good service making us the customer feel valued.
Bill
★★★★★
first place we look
honest about stock and prices are competitive.
Phil
★★★★★
Polite and helpful
Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
Graham
★★★★★
Buying experience
Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
Jeremy