This is the M4 ruby ball styli #A-5003-5730.
This straight stylus can be used for simple features with which direct contact can be made. The carbon fiber stem on this stylus is very lightweight so is ideal for use where weight is an issue. Silicon nitride tips are recommended when scanning aluminum because particles will not be deposited on the surface.
*This stylus is recommended for us with OMP400 and RMP600
| Thread mount (DG) | M4 |
| Ball Diameter (DK) | 6.0 mm |
| Length (L) | 50.0 mm |
| Stem Diameter (DS) | 4.5 mm |
| EWL (ML) | 38.5 mm |
| Ball material | Silicon Nitride |
| Stem material | Carbon Fiber |
| Mass | 4.1 g |
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