| Manufacturer Part Number | D8405 |
| Diameter (Decimal Inch) | 0.2500" |
| Diameter (mm) | 6.35mm |
| Thread Size | 1/4" |
| Pitch | 20 TPI |
| Shank Diameter (Decimal Inch) | 0.2550" |
| Shank Diameter (mm) | 6.48mm |
| Overall Length (Decimal Inch) | 2.5000" |
| Overall Length (mm) | 63.50mm |
| Thread Length (Decimal Inch) | 0.4330" |
| Thread Length (mm) | 11.00mm |
| Square Length (Decimal Inch) | 0.3100" |
| Square Length (mm) | 7.87mm |
| Square Size (Decimal Inch) | 0.1910" |
| Square Size (mm) | 4.85mm |
| Neck Diameter (Decimal Inch) | 0.1800" |
| Neck Diameter (mm) | 4.57mm |
| Useable Length (Decimal Inch) | 1.0000" |
| Useable Length (mm) | 25.40mm |
| Drill Size (Decimal Inch) | 0.2045" |
| Drill Size (mm) | 5.20mm |
| Number of Flutes | 2 |
| Pitch Limit | H5 |
| Helix Angle (Degree) | 50 Degree |
| Coolant Through | No |
| Shank Type | Square |
| Finish / Coating | Hardslick |
| Material | HSSE-V3 |
| Chamfer Length | 2P-3P |
| Chamfer Type | Modified Bottoming |
| Product Type | Spiral Flute Thread Tap |
714.897.1700
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