This is the TS27R tungsten carbide stylus (not M4) #A-2008-0382. It is a tool datuming stylus fitted with a square tip, ground to ensure high squareness and parallelism.
| Length (B) | 23.0 mm |
| (A) | 3.925 mm |
| (C) | 8.0 mm |
| Disk Diameter (D) | 12.7 mm |
| Mass | 12.1g |
| Material | Tungsten Carbide |




