Specifications
| Thread Size (Inch): 5/16-18 | Thread Standard: UNC |
| Chamfer: Bottoming | Material: High-Speed Steel |
| Class Of Fit: 2B | Coating/Finish: Oxide |
| Thread Direction: Right Hand | Coolant Through: No |
| Material Application: Aluminum; Carbon Steel | Number Of Flutes: 3 |
| Flute Direction: Right Hand | Helix Angle: 50.00 |
| Proprietary Coating/Finish: Oxide | Oversize: No |
| Primary Workpiece Material: Aluminum & Non-Ferrous; Steel | Threads per Inch: 18 |
| Overall Length (Inch): 2-23/32 | Thread Length (Decimal Inch): 0.6650 |
| Overall Length (Decimal Inch): 2.7190 | Primary Workpiece Material Code: P; N |
| Shank Diameter (Decimal Inch): 0.3180 | Neck Length (Decimal Inch): 1.1250 |
| Square Length (Decimal Inch): 0.3750 | Square Size (Decimal Inch): 0.2380 |
| Flute Style: Spiral | Series: 297 |
| UNSPSC Code: 27112806 | Product Name: OSG OSG 1658 |
| Country of Origin: Brazil | |
| Thread Size (Inch): 5/16-18 | |
| Thread Standard: UNC | |
| Chamfer: Bottoming | |
| Material: High-Speed Steel | |
| Class Of Fit: 2B | |
| Coating/Finish: Oxide | |
| Thread Direction: Right Hand | |
| Coolant Through: No | |
| Material Application: Aluminum; Carbon Steel | |
| Number Of Flutes: 3 | |
| Flute Direction: Right Hand | |
| Helix Angle: 50.00 | |
| Proprietary Coating/Finish: Oxide | |
| Oversize: No | |
| Primary Workpiece Material: Aluminum & Non-Ferrous; Steel | |
| Threads per Inch: 18 | |
| Overall Length (Inch): 2-23/32 | |
| Thread Length (Decimal Inch): 0.6650 | |
| Overall Length (Decimal Inch): 2.7190 | |
| Primary Workpiece Material Code: P; N | |
| Shank Diameter (Decimal Inch): 0.3180 | |
| Neck Length (Decimal Inch): 1.1250 | |
| Square Length (Decimal Inch): 0.3750 | |
| Square Size (Decimal Inch): 0.2380 | |
| Flute Style: Spiral | |
| Series: 297 | |
| UNSPSC Code: 27112806 | |
| Product Name: OSG OSG 1658 | |
| Country of Origin: Brazil |
| MSC# | 04621751 |
| Mfr# | 2985801 |
| Big Book# | 331 |

















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