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ITP Hemisperical Styli stainless steel Base Material - ceramic Prob Ball Material - M2 Thread Size x 18mm Ball Diameter - HKM218003012
| Thread Size | M2 |
| Shank Diameter (DG) | 5 |
| Base Material | stainless steel |
| Prob Ball Material | ceramic |
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Description
ITP Hemispherical Stylus combines a sturdy stainless steel base with a ceramic hollow-sphere probe, crafted for precise tactile measurements on coarse and rough surface structures. It’s a reliable choice for metrology labs, materials research, and quality control workflows that demand consistent contact geometry.
- Base material: Stainless steel — durable, rigid, and suited for repeated probing in demanding environments.
- Probe ball material: Ceramic hollow sphere — lightweight with excellent precision for stable measurements on textured surfaces.
- Ball diameter: 18 mm — provides a well-defined contact area for repeatable readings.
- Thread size: M2 — compatible with standard stylus holders and adapters for quick setup.
- Application: Serves as a mechanical filter when probing coarse or rough surface structures, helping to capture essential topography without being overwhelmed by fine surface noise.
- Manufacturing precision: Designed to maintain high measurement accuracy even after mechanical processing, thanks to careful balancing of weight and rigidity.
When you’re evaluating surfaces with pronounced texture, the ceramic hollow sphere acts as a controlled contact tip that minimizes distortion from micro-features while preserving the overall geometry of the surface. The lightweight sphere reduces inertia for smoother scans, and the stainless steel base ensures longevity and reliability across long measurement campaigns. This hemispherical stylus is an ideal companion for material characterization, roughness assessments, and repeatable, dependable tactile measurements in research and production environments.
Part Numbers
- Protool Part Number
- ITP-HKM218003012
- 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.


