This is the M4 tool datuming styli #A-2116-0140. Tool setting styli are fitted with a precision ground tip to ensure high squareness and parallelism.
| Thread | M4 |
| Length | 32.0 mm |
| For use on | TSA |
| Faces | 4 |
| Tip Material | Tungsten Carbide |
| Stem Material | Tungsten Carbide |
| Mass | 13.56 g |
