| Manufacturer Part Number | BO657 |
| Thread Size | M18 |
| Thread Size (Decimal Inch) | 0.709" |
| Thread Size (mm) | 18.00mm |
| Pitch (mm) | 2.50mm |
| Thread Series | M |
| Pitch Limit | D7 |
| Chamfer Type | Modified Bottoming |
| Chamfer Length | 2P-3P |
| Overall Length (Decimal Inch) | 4.921" |
| Overall Length (mm) | 124.99mm |
| Thread Length (Decimal Inch) | 0.787" |
| Thread Length (mm) | 19.99mm |
| Square Length (Decimal Inch) | 0.630" |
| Square Length (mm) | 16.00mm |
| Shank Diameter (Decimal Inch) | 0.542" |
| Shank Diameter (mm) | 13.77mm |
| Square Size (Decimal Inch) | 0.406" |
| Square Size (mm) | 10.31mm |
| Neck Diameter (Decimal Inch) | 0.530" |
| Neck Diameter (mm) | 13.46mm |
| Neck Length (Decimal Inch) | 2.205" |
| Neck Length (mm) | 56.01mm |
| Shank Type | Square |
| Drill Size (Decimal Inch) | 0.619" |
| Drill Size (mm) | 15.73mm |
| Connection Size (Decimal Inch) | 0.542" x 0.406" |
| Connection Size (mm) | 13.77 x 10.31mm |
| Length / Diameter | 2.5 X D |
| Usable Length (Decimal Inch) | 2.205" |
| Usable Length (mm) | 56.01mm |
| Ring Color | Blue Ring |
| Helix Angle (Degree) | 40 Degree |
| Number of Flutes | 4 |
| Coating | HardSlick |
| Material | HSS-PM |
| Blank Standard | DIN/ANSI |
| Product Type | Spiral Flute Tap |
714.897.1700
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