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ITP Disc Styli stainless steel Prob Ball Material - M5 Thread x 20mm Ball Diameter - Type N - KIM504020080
| Thread Size | M5 |
| Ball Diameter (DK) | 20 |
| Styli Type | Type N |
| Neck Diameter (DS) | 8 |
| Prob Ball Material | stainless steel |
| B | 4 |
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The ITP Disc Stylus, model KIM504020080, is a stainless steel spherical disc probe designed for precision metrology. With a 20 mm probing ball and an M5 thread, it’s built to tackle measurements of large inside diameters and integrated undercuts in CMM workpieces.
- Material: Stainless steel for durability, wear resistance, and corrosion resistance in demanding environments
- Ball Diameter: 20 mm provides stable contact on large internal features
- Thread: M5 threaded shank for secure, compatibility-friendly attachment
- Disc Type: Type N spherical disc stylus designed for interior measurements and undercuts
- Primary Use: Ideal for measuring large inside diameters and recessed features where precision is critical
- Z-Direction Consideration: Not recommended for probing in the Z direction with standard disks; radius-end-roller variants are required for Z probing
- Compatibility: Designed to integrate with standard probe heads and metrology setups that accept M5 stylus attachments
This disc stylus delivers reliable, repeatable data for internal diameters and complex geometries, making it a valuable accessory for quality control, aerospace and automotive components, and precision engineering projects. The robust stainless steel construction supports repeated use in production environments, while the 20 mm ball geometry expands the range of features you can accurately capture. Its secure M5 threading ensures quick, tool-free changes on compatible CMM systems, helping minimize downtime during audits or routine inspections. For best results when probing deep bores or undercuts, pair with appropriate Z-direction tooling or radius-end roller options designed for those applications.
| Thread Size | M5 |
| Ball Diameter (DK) | 20 |
| Styli Type | Type N |
| Neck Diameter (DS) | 8 |
| Prob Ball Material | stainless steel |
| B | 4 |
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.


