Basic StandardANSICoatingST/BronzeConnection diameter - fractional inch (DCON MS)1/2Connection diameter - inch (DCON MS)0.5Connection diameter - millimeter (DCON MS)12.7Cutting diameter - fractional inch (DC)1/2Cutting diameter - inch (DC)0.5Cutting diameter - millimeter (DC)12.7EDP number252376Flute count (NOF)5Hand (Cutting direction)RightLength chip flute - fractional inch (LCF)3.3/4Length chip flute - inch (LCF)3.75MaterialHSSMaterial applicationN - Non-ferrous metals, P - Steel and cast steelMID number5986446Ordering code ANSIB1221/2Overall length - fractional inch (OAL)5.7/8Overall length - inch (OAL)5.875Overall length - millimeter (OAL)149.23ShankCylindrical shank
| Basic Standard | ANSI |
| Coating | ST/Bronze |
| Connection diameter - fractional inch (DCON MS) | 1/2 |
| Connection diameter - inch (DCON MS) | 0.5 |
| Connection diameter - millimeter (DCON MS) | 12.7 |
| Cutting diameter - fractional inch (DC) | 1/2 |
| Cutting diameter - inch (DC) | 0.5 |
| Cutting diameter - millimeter (DC) | 12.7 |
| EDP number | 252376 |
| Flute count (NOF) | 5 |
| Hand (Cutting direction) | Right |
| Length chip flute - fractional inch (LCF) | 3.3/4 |
| Length chip flute - inch (LCF) | 3.75 |
| Material | HSS |
| Material application | N - Non-ferrous metals, P - Steel and cast steel |
| MID number | 5986446 |
| Ordering code ANSI | B1221/2 |
| Overall length - fractional inch (OAL) | 5.7/8 |
| Overall length - inch (OAL) | 5.875 |
| Overall length - millimeter (OAL) | 149.23 |
| Shank | Cylindrical shank |