Ruby Spherical Stylus · Tungsten Carbide Series
▪ RUBY head
▪ Tungsten steel measuring rod
▪ M2–M5 threads
▪ Tungsten steel measuring rod
▪ M2–M5 threads
M4 Ruby Ball Tungsten Carbide Stylus
| Ball Head Material: | Ruby |
| Probe Material: | Tungsten Carbide / Tungsten Steel |
| Thread Specification: | M4 (Metric) · Effective length calculated from the ball center |
| Common Effective Lengths: | 10mm / 20mm / 30mm / 50mm (Non-standard available) |
| Ball Diameter: | φ1.0mm, φ2.0mm, φ3.0mm and Customizable |
Thread family (M2~M5):
✲Thread definition: Helical protrusions on a cylindrical surface. This series adopts metric M2-M5, standard M3/M4.
Advantages of Tungsten Carbide Small Diameter Probes:
For small-diameter or short probes (length less than 50mm) requiring high rigidity, tungsten carbide is an ideal choice. It is especially suitable for probes with a ball diameter of φ1.0mm or smaller, offering good rigidity and resistance to deformation.
Recommended: φ1mm ruby ball + tungsten carbide probe (M3/M4) for high-precision measurement of minute features.
Product delivery and after-sales service
In-stock items ship immediately:
Common sizes (M3/M4) ship within 24 hours. Non-standard custom orders take 3-7 days.
Quality Assurance:
Every item undergoes factory inspection; test data is provided; third-party metrology is supported.
Technical Support:
CSelection Guide · Installation and Usage · Worry-Free After-Sales Service · Lifetime Maintenance




