Letter I, 145 Degree Point, Solid Carbide Drill - 51346
SERIES: 135
Hi-PerCarb 135
Letter I, 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 - 51346
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)
| 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 | I |
| Cutting Diameter (DC) (Decimal Inch) | 0.2720 |
| Cutting Diameter (DC) (mm) | 6.91 |
| Shank Diameter (DCON) (Decimal Inch) | 0.3125 |
| Shank Diameter (DCON) (mm) | 7.94 |
| Usable Length (LU) (Fractional Inch) | 1-3/64 |
| Flute Length (LCF) (Decimal Inch) | 1.3125 |
| Flute Length (LCF) (Fractional Inch) | 1-5/16 |
| Flute Length (LCF) (mm) | 33.34 |
| 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 |
| 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 |
| 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 |
| Shipping Weight | 0.0940 |
| Series | 135 |
| Weldon Flat | No |
| US Stock | 107 |
| Shank Length (LS) (mm) | 36.51 |
| Shank Diameter (DCON) (Fractional Inch) | 5/16 |
| Usable Length (LU) (Decimal Inch) | 1.0469 |
| Usable Length (LU) (mm) | 26.59 |