| Cutting Diameter (DC) | 1/4″ | Flute Count (NOF) | 5 |
| Connection Diameter Machine Side (DCONMS) | 1/4″ | Flute Helix Angle (FHA) | Variable |
| Depth of Cut Maximum (APMX) | 3/8″ | Decimal Equivalent | 0.25″ |
| Overall Length (OAL) | 4″ | Measurement Type | Inch |
| Cutting Edge Material | Carbide | Series/List # | 558 |