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Letter N, 145 Degree Point, Solid Carbide Drill - 51612
SERIES: 135
Hi-PerCarb 135
Letter N, 145 Degree Point, 5/16" Shank Dia, 3-1/8" OAL, 2 Flute, 3xD, Ti-NAMITE-A (AlTiN) Coated, Series 135, Hi-PerCarb 135, Solid Carbide Drill - 51612
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 ≤ 50 HRc (≤ 475 Bhn)
| SKU / EDP | 51612 |
|---|---|
| Category | Solid Round Tools > Holemaking > High Performance Drills |
| Min Order Qty | 1 |
| Series | 135 |
| Series Description | Hi-PerCarb 135 |
| High Performance | Yes |
| Unit (inch/mm) | inch |
| Number of Flutes | 2 |
| Primary Workpiece Material | (P) Steel|(M) Stainless Steel|(H) Hardened Materials |
| Secondary Workpiece Material | (K) Cast Iron|(N) Non-Ferrous Materials|(S) High Temp Alloy |
| Reach (xD) | 3xD |
| Size | N |
| Cutting Diameter (DC) (Decimal Inch) | 0.3020 |
| Cutting Diameter (DC) (mm) | 7.67 |
| Shank Diameter (DCON) (Decimal Inch) | 0.3125 |
| Shank Diameter (DCON) (Fractional Inch) | 5/16 |
| Shank Diameter (DCON) (mm) | 7.94 |
| Usable Length (LU) (Decimal Inch) | 1.1875 |
| Usable Length (LU) (Fractional Inch) | 1-3/16 |
| Usable Length (LU) (mm) | 30.16 |
| Flute Length (LCF) (Decimal Inch) | 1.5625 |
| Flute Length (LCF) (Fractional Inch) | 1-9/16 |
| Flute Length (LCF) (mm) | 39.69 |
| Overall Length (OAL) (Decimal Inch) | 3.1250 |
|---|---|
| Overall Length (OAL) (Fractional Inch) | 3-1/8 |
| Overall Length (OAL) (mm) | 79.38 |
| Shank Length (LS) (Decimal Inch) | 1.4375 |
| Shank Length (LS) (Fractional Inch) | 1-7/16 |
| Shank Length (LS) (mm) | 36.51 |
| Point Angle (Degree) | 145 |
| 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 | External Coolant |
| Coating Description | AlTiN (Ti-NAMITE-A) |
| Additional Geometry | Right Hand Cut Direction (RHC) |
| Helix Angle | Right Spiral |
| Helix Angle (Degree) | 32 |
| Variable Helix | No |
| Center Cutting | No |
| Chip Breaker | No |
| Number of Margins | 4 |
| Self Centering | Yes |
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