Extra Length Drill Bit: 0.25″ Dia, 140 °, Solid Carbide TiAlN Finish, 8.2677″ Flute Length, Spiral Flute, Straight-Cylindrical Shank, Series 861.1
Item #: 54731708
Brand: Sandvik Coromant
Model #: 6151034
Product Specifications
| Drill Bit Size (Inch) | 1/4 |
| Overall Length (mm) | 252.00 |
| Flute Length (mm) | 210.00 |
| Tool Material | Solid Carbide |
| Coating/Finish | TiAlN |
| Drill Point Angle | 140 |
| Shank Type | Straight-Cylindrical |
| Coolant Through | Yes |
| Flute Type | Spiral |
| Series | 861.1 |
| Point Type | Standard |
| Cutting Direction | Right Hand |
| Tool Application | Drilling |
| Spiral Type | Regular |
| Drill Bit Diameter Tolerance | 0.0100 to -0.0010 in; +0.025 to -0.025 mm |
| Number Of Flutes | 2 |
| Primary Workpiece Material | Steel |
| Primary Workpiece Material Code | P |
| Secondary Workpiece Material | Stainless Steel |
| Secondary Workpiece Material Code | M |
| Standards | COROMANT |
| Drill Bit Grade | High Performance |
| Drill Bit Size (Decimal Inch) | 0.2500 |
| Drill Point Length (mm) | 1.00 |
| Drill Point Length (Decimal Inch) | 0.0394 |
| Shank Diameter (Decimal Inch) | 0.3150 |
| Shank Diameter (mm) | 8.00 |
| Shank Length (Decimal Inch) | 1.4173 |
| Shank Length (mm) | 36.00 |
| Flute Length (Decimal Inch) | 8.2677 |
| Flute By Diameter Ratio | 30xD |
| Maximum Drilling Depth (Decimal Inch) | 7.5394 |
| Maximum Drilling Depth (mm) | 191.50 |
| Material Grade | GC34 |
| Specification Designation | ISO |
| Specification Number | 861.1-0635-191A1-GM GC34 |
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| MSC Part # | 54731708 |
| Mfr Part # | 6151034 |
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