Basic StandardANSIClamping width - fractional inch (WSC)0.687Clamping width - inch0.515CoatingBrightCoating property (CTP)2Connection diameter - inch (DCON MS)4.3/8Connection diameter - millimeter (DCON MS)17.45EDP number297261Flute count (NOF)27Flute Geometry (FDC)Spiral Flute GeometryFlute helix angle (FHA)27Hand (Cutting direction)RightMaterialHSSMaterial applicationP - Steel and cast steelMID number5978392Ordering code ANSIE6531/2Overall length - fractional inch (OAL)4.3/8Overall length - inch (OAL)4.375Overall length - millimeter (OAL)1.3/8ShankCylindrical shank with SquareThread diameter - millimeter (TD)0.7087Thread diameter size (TDZ)1/2Thread form (THFT)NPT - National taper pipeThreads per inch (TPI)14Usable length (ULDR)1.5Usable Length - fractional inch (LU)1.3/8
| Basic Standard | ANSI |
| Clamping width - fractional inch (WSC) | 0.687 |
| Clamping width - inch | 0.515 |
| Coating | Bright |
| Coating property (CTP) | 2 |
| Connection diameter - inch (DCON MS) | 4.3/8 |
| Connection diameter - millimeter (DCON MS) | 17.45 |
| EDP number | 297261 |
| Flute count (NOF) | 27 |
| Flute Geometry (FDC) | Spiral Flute Geometry |
| Flute helix angle (FHA) | 27 |
| Hand (Cutting direction) | Right |
| Material | HSS |
| Material application | P - Steel and cast steel |
| MID number | 5978392 |
| Ordering code ANSI | E6531/2 |
| Overall length - fractional inch (OAL) | 4.3/8 |
| Overall length - inch (OAL) | 4.375 |
| Overall length - millimeter (OAL) | 1.3/8 |
| Shank | Cylindrical shank with Square |
| Thread diameter - millimeter (TD) | 0.7087 |
| Thread diameter size (TDZ) | 1/2 |
| Thread form (THFT) | NPT - National taper pipe |
| Threads per inch (TPI) | 14 |
| Usable length (ULDR) | 1.5 |
| Usable Length - fractional inch (LU) | 1.3/8 |