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8.40mm Dia, 180 Degree Point, Solid Carbide Drill - 67872
SERIES: 146U
Hi-PerCarb 146U Flat Bottom
8.40mm Dia, 180 Degree Point, 10.00mm Shank Dia, 115.00mm OAL, 2 Flute, 5xD, Coolant-Through, Ti-NAMITE-X (TX) Coated, Series 146U, Hi-PerCarb 146U Flat Bottom, Solid Carbide Drill - 67872
Feature & Benefits
- 4-margin design improves accuracy and surface finish along with increased strength for aggressive drilling
- Specialized self-centering notched point eliminates the need for spot drilling decreasing thrust and deflection
- Engineered edge protection improves edge strength and reduces edge fatigue allowing for increased feed rates
- Recommended for materials ≤ 56 HRc (≤ 577 Bhn)
| SKU / EDP | 67872 |
|---|---|
| Category | Solid Round Tools > Holemaking > High Performance Drills |
| Min Order Qty | 1 |
| Series | 146U |
| Series Description | Hi-PerCarb 146U Flat Bottom |
| High Performance | Yes |
| Unit (inch/mm) | mm |
| Number of Flutes | 2 |
| Primary Workpiece Material | (P) Steel|(M) Stainless Steel|(K) Cast Iron|(N) Non-Ferrous Materials|(S) High Temp Alloy|(H) Hardened Materials |
| Secondary Workpiece Material | (N) Non-Ferrous Materials|Plastics & Composites |
| Reach (xD) | 5xD |
| Size | 8.40mm |
| Cutting Diameter (DC) (Decimal Inch) | 0.3307 |
| Cutting Diameter (DC) (mm) | 8.40 |
| Shank Diameter (DCON) (Decimal Inch) | 0.3937 |
| Shank Diameter (DCON) (mm) | 10.00 |
| Usable Length (LU) (Decimal Inch) | 1.6929 |
| Usable Length (LU) (mm) | 43.00 |
| Flute Length (LCF) (Decimal Inch) | 2.1654 |
| Flute Length (LCF) (mm) | 55.00 |
| Overall Length (OAL) (Decimal Inch) | 4.5276 |
|---|---|
| Overall Length (OAL) (mm) | 115.00 |
| Shank Length (LS) (Decimal Inch) | 2.0079 |
| Shank Length (LS) (mm) | 51.00 |
| Point Angle (Degree) | 180 |
| Cutting Diameter (DC) Tolerance (Decimal Inch) | +.00024 / +.00083 |
| Cutting Diameter (DC) Tolerance (mm) | +.0060 / +.0210 |
| Shank Diameter (DCON) Tolerance (ISO) | h6 |
| Shank Type | Straight |
| Weldon Flat | No |
| Coolant Option | Internal Coolant |
| Coating Description | TX (Ti-NAMITE-X) |
| Additional Geometry | Right Hand Cut Direction (RHC) |
| Helix Angle | Right Spiral |
| Helix Angle (Degree) | 15 |
| Variable Helix | No |
| Center Cutting | No |
| Chip Breaker | No |
| Number of Margins | 4 |
| Self Centering | Yes |
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