Home/Solid Round Tools/Milling/High Performance End Mills/20.00mm Dia, 7 Flute, Chip Breaker Square End Mill - 74539
20.00mm Dia, 7 Flute, Chip Breaker Square End Mill - 74539
SERIES: 77MS
H-Carb
20.00mm Dia, 80.00mm LOC, 20.00mm Shank Dia, 7 Flute, 37 Degree Helix, Ti-NAMITE-M (TM) Coated, Series 77MS, H-Carb, Chip Breaker Square End Mill - 74539
Feature & Benefits
Specializes in deep axial trochoidal and high-speed milling applications
Optimized core improves rigidity, chip flow and reduces deflection
Chip Breaker design breaks up chips from the long flute length allowing for better chip flow and evacuation in deep pocketing operations
| Series Description | H-Carb |
|---|---|
| High Performance | Yes |
| End Configuration | Chip Breaker (Square) |
| Unit (inch/mm) | mm |
| Number of Flutes | 7 |
| 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) | 0.7874 |
| Cutting Diameter (DC) (mm) | 20.00 |
| Shank Diameter (DCON) (Decimal Inch) | 0.7874 |
| Shank Diameter (DCON) (mm) | 20.00 |
| Length of Cut (APMX) (Decimal Inch) | 3.1496 |
| Length of Cut (APMX) (mm) | 80.00 |
| Overall Length (LF) (Decimal Inch) | 5.5118 |
| Overall Length (LF) (mm) | 140.00 |
| Non-Cutting Center Diameter (NCD) (Decimal Inch) | 0.2661 |
| Non-Cutting Center Diameter (NCD) (mm) | 6.76 |
| 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 |
| Shank Diameter (DCON) Tolerance (Decimal Inch) | +0.0000 / -0.00051 |
| Shank Diameter (DCON) Tolerance (mm) | +0.0000 / -0.0013 |
| Shank Type | Straight |
| Coolant Option | External Coolant |
| Coating Description | TM (Ti-NAMITE-M) |
| Additional Geometry | Chip Breaker / Right Hand Cut Direction (RHC) |
| Rake Angle | Positive |
| Helix Angle | Right Spiral |
| Helix Angle (Degree) | 37 |
| Variable Helix | No |
| Center Cutting | No |
| Chip Breaker | Yes |
| Shipping Weight | 1.1550 |
| Series | 77MS |
| Weldon Flat | No |
| US Stock | 9 |
| Tool Length | Extra Long |
Alternate Products
20.00mm Dia, 80.00mm LOC, 20.00mm Shank Dia, 7 Flute, 37 Degree Helix, Ti-NAMITE-A (AlTiN) Coated, Series 77MS, H-Carb, Chip Breaker Square End Mill - 74538
List Price: $516.24
U.S. stocked items ship next day
Total Available U.S. :5
20.00mm Dia, 80.00mm LOC, 20.00mm Shank Dia, 7 Flute, 37 Degree Helix, Ti-NAMITE-M (TM) Coated, Series 77MS, H-Carb, Square End End Mill - 74537
List Price: $491.65
U.S. stocked items ship next day
Total Available U.S. :0
20.00mm Dia, 80.00mm LOC, 20.00mm Shank Dia, 7 Flute, 37 Degree Helix, Ti-NAMITE-A (AlTiN) Coated, Series 77MS, H-Carb, Square End End Mill - 74536
List Price: $491.65
U.S. stocked items ship next day
Total Available U.S. :12