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6.40mm Dia, 136 Degree Point, Solid Carbide Drill - 69257
SERIES: 143
Hi-PerCarb 143M-S
6.40mm Dia, 136 Degree Point, 8.00mm Shank Dia, 91.00mm OAL, 2 Flute, 5xD, Coolant-Through, Ti-NAMITE-A (AlTiN) Coated, Series 143, Hi-PerCarb 143M-S, Solid Carbide Drill - 69257
Feature & Benefits
- Coolant through design improves coolant flow to extend tool life and aid in chip evacuation
- Eccentric 2-margin design reduces frictional heat and minimizes material adhesion to the margins without weakening the drill
- Computer controlled edge honing protects against chip damage
- High-performance point design stabilizes on contact for exceptional hole size and cylindricity allowing for low thrust force and extended tool life
- SGS Ti-NAMITE®-A coating provides exceptional wear and erosion resistance when drilling heat resisting alloys like Inconel, Stainless Steel, and Titanium Alloys
- Recommended for materials ≤ 50HRc (475 Bhn)
| SKU / EDP | 69257 |
|---|---|
| Category | Solid Round Tools > Holemaking > High Performance Drills |
| Min Order Qty | 1 |
| Series | 143 |
| Series Description | Hi-PerCarb 143M-S |
| High Performance | Yes |
| Unit (inch/mm) | mm |
| Number of Flutes | 2 |
| Primary Workpiece Material | (M) Stainless Steel|(N) Non-Ferrous Materials|(S) High Temp Alloy |
| Secondary Workpiece Material | (P) Steel|(K) Cast Iron |
| Reach (xD) | 5xD |
| Size | 6.40mm |
| Cutting Diameter (DC) (Decimal Inch) | 0.2520 |
| Cutting Diameter (DC) (mm) | 6.40 |
| Shank Diameter (DCON) (Decimal Inch) | 0.3150 |
| Shank Diameter (DCON) (mm) | 8.00 |
| Usable Length (LU) (Decimal Inch) | 1.6929 |
| Usable Length (LU) (mm) | 43.00 |
| Flute Length (LCF) (Decimal Inch) | 2.0866 |
| Flute Length (LCF) (mm) | 53.00 |
| Overall Length (OAL) (Decimal Inch) | 3.5827 |
| Overall Length (OAL) (mm) | 91.00 |
|---|---|
| Shank Length (LS) (Decimal Inch) | 1.4173 |
| Shank Length (LS) (mm) | 36.00 |
| Point Angle (Degree) | 136 |
| Cutting Diameter (DC) Tolerance (Decimal Inch) | +.00024 / +.00083 |
| Cutting Diameter (DC) Tolerance (mm) | +.0061 / +.0211 |
| Shank Diameter (DCON) Tolerance (ISO) | h6 |
| Shank Type | Straight |
| Weldon Flat | No |
| Coolant Option | Internal Coolant |
| Coating Description | AlTiN (Ti-NAMITE-A) |
| Additional Geometry | Right Hand Cut Direction (RHC) |
| Helix Angle | Right Spiral |
| Helix Angle (Degree) | 30 |
| Variable Helix | No |
| Center Cutting | No |
| Chip Breaker | No |
| DIN Standard | DIN 6537 |
| Number of Margins | 2 |
| Self Centering | Yes |
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