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7/16" Dia, 136 Degree Point, Solid Carbide Drill - 56861
SERIES: 143
Hi-PerCarb 143M-S
7/16" Dia, 136 Degree Point, 0.4724" Shank Dia, 4.6457" OAL, 2 Flute, 5xD, Coolant-Through, Ti-NAMITE-A (AlTiN) Coated, Series 143, Hi-PerCarb 143M-S, Solid Carbide Drill - 56861
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 | 56861 |
|---|---|
| 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) | inch |
| 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 | 7/16" |
| Cutting Diameter (DC) (Decimal Inch) | 0.4375 |
| Cutting Diameter (DC) (Fractional Inch) | 7/16 |
| Cutting Diameter (DC) (mm) | 11.11 |
| Shank Diameter (DCON) (Decimal Inch) | 0.4724 |
| Shank Diameter (DCON) (mm) | 12.00 |
| Usable Length (LU) (Decimal Inch) | 2.2047 |
| Usable Length (LU) (mm) | 56.00 |
| Flute Length (LCF) (Decimal Inch) | 2.7953 |
| Flute Length (LCF) (mm) | 71.00 |
| Overall Length (OAL) (Decimal Inch) | 4.6457 |
|---|---|
| Overall Length (OAL) (mm) | 118.00 |
| Shank Length (LS) (Decimal Inch) | 1.7717 |
| Shank Length (LS) (mm) | 45.00 |
| Point Angle (Degree) | 136 |
| Cutting Diameter (DC) Tolerance (Decimal Inch) | +.00028 / +.00098 |
| Cutting Diameter (DC) Tolerance (mm) | +.0071 / +.0251 |
| 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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