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1/4" Dia, 4 Flute, Ball Nose End Mill - 70447
SERIES: 7B
Series 7
1/4" Dia, 1-1/8" LOC, 1/4" Shank Dia, 4 Flute, 38 Degree Helix, Ti-NAMITE-X (TX) Coated, Series 7B, Series 7, Ball Nose End Mill - 70447
Feature & Benefits
- Variable pitch allows for improved chatter suppression along with improved surface finish and enhanced tool life
- Raised land and increased core diameter designed to enhance tool life and decrease tool deflection
- Ball end design ideal for finishing operations in complex workpieces
- Recommended for materials ≤ 45 HRc (≤ 420 Bhn)
| SKU / EDP | 70447 |
|---|---|
| Category | Solid Round Tools > Milling > High Performance End Mills |
| Min Order Qty | 1 |
| Series | 7B |
| Series Description | Series 7 |
| High Performance | Yes |
| End Configuration | Ball Nose |
| Tool Length | Extra Long |
| Unit (inch/mm) | inch |
| Number of Flutes | 4 |
| Primary Workpiece Material | (P) Steel|(M) Stainless Steel|(K) Cast Iron|(S) High Temp Alloy |
| Secondary Workpiece Material | (H) Hardened Materials |
| Cutting Diameter (DC) (Decimal Inch) | 0.2500 |
| Cutting Diameter (DC) (Fractional Inch) | 1/4 |
| Cutting Diameter (DC) (mm) | 6.35 |
| Shank Diameter (DCON) (Decimal Inch) | 0.2500 |
| Shank Diameter (DCON) (Fractional Inch) | 1/4 |
| Shank Diameter (DCON) (mm) | 6.35 |
| Length of Cut (APMX) (Decimal Inch) | 1.1250 |
| Length of Cut (APMX) (Fractional Inch) | 1-1/8 |
| Length of Cut (APMX) (mm) | 28.58 |
| Overall Length (LF) (Decimal Inch) | 3.0000 |
| Overall Length (LF) (Fractional Inch) | 3 |
|---|---|
| Overall Length (LF) (mm) | 76.20 |
| Shank Length (LS) (Decimal Inch) | 1.8750 |
| Shank Length (LS) (Fractional Inch) | 1-7/8 |
| Shank Length (LS) (mm) | 47.63 |
| Cutting Diameter (DC) Tolerance (Decimal Inch) | +0.0000/+0.0020 |
| Cutting Diameter (DC) Tolerance (mm) | +0.000/+0.050 |
| Shank Diameter (DCON) Tolerance (ISO) | h6 |
| Corner Radius (RE) Tolerance (Decimal Inch) | +0.0000/-0.0010 |
| Corner Radius (RE) Tolerance (mm) | +0.000/-0.025 |
| Shank Type | Straight |
| Weldon Flat | No |
| Coolant Option | External Coolant |
| Coating Description | TX (Ti-NAMITE-X) |
| Additional Geometry | Right Hand Cut Direction (RHC) |
| Rake Angle | Positive |
| Helix Angle | Right Spiral |
| Helix Angle (Degree) | 38 |
| Variable Helix | No |
| Center Cutting | Yes |
| Chip Breaker | No |
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