This is the M4 tool datuming styli #A-2116-0142. Tool setting styli are fitted with a precision ground tip to ensure high squareness and parallelism.
| Thread | M4 |
| Length | 30.3 mm |
| For use on | TSA |
| Faces | 4 |
| Tip Material | Tungsten Carbide |
| Stem Material | Tungsten Carbide |
| Mass | 22.6 g |
