| Manufacturer Part Number | SI582 |
| Thread Size (Inch) | 1/2" |
| Thread Size (Decimal Inch) | 0.500" |
| Thread Size (mm) | 12.70mm |
| Threads per Inch (TPI) | 20 |
| Thread Series | UNF |
| Pitch Limit | 2B |
| Chamfer Type | Plug |
| Chamfer Length | 4P-5P |
| Overall Length (Decimal Inch) | 3.590" |
| Overall Length (mm) | 91.19mm |
| Thread Length (Decimal Inch) | 0.709" |
| Thread Length (mm) | 18.01mm |
| Square Length (Decimal Inch) | 0.500" |
| Square Length (mm) | 12.70mm |
| Shank Diameter (Decimal Inch) | 0.429" |
| Shank Diameter (mm) | 10.90mm |
| Square Size (Decimal Inch) | 0.322" |
| Square Size (mm) | 8.18mm |
| Neck Diameter (Decimal Inch) | 0.417" |
| Neck Diameter (mm) | 10.59mm |
| Drill Size (Decimal Inch) | 0.516" |
| Drill Size (mm) | 13.11mm |
| Connection Size (Decimal Inch) | 0.429" x 0.322" |
| Connection Size (mm) | 10.90 x 8.18mm |
| Usable Length (Decimal Inch) | 1.660" |
| Usable Length (mm) | 42.16mm |
| Length / Diameter | 2.5 x D |
| Number of Flutes | 3 |
| Coating | Hardslick |
| Material | HSS-E |
| Blank Standard | 322 |
| Series | SI |
| Product Type | Spiral Point Tap |
714.897.1700
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