Ref. 21740A-8-R2
Corner rounding endmill
Form-Relieved-Corner-Rouding-Tool-SC-E2-+-EZI-ALPHA
E2A E2 — 4 flutes, sharp corner, Ø 8 mm
Swiss Made
Profile view
Top view
E2 High Precision Tool Material
Tool Lambda Angle 0° Gamma 10°
Concave U-Groove Cutting Tool
Lateral Cutting Twist Drill Bit
Specifications
Dimensions
| Diameter (D) | 8 mm |
| Shank diameter (d) | 8 mm (h5) |
| Overall length (L) | 63 mm |
| Cutting length (l1) | 0.3 × D = 2 mm |
| Number of flutes (Z) | 4 |
| Thickness (e) | 3 mm |
Material & geometry
| Substrate | E2A |
| Nuance | E2 |
| Granulométrie | < 0.8 µm |
| Hardness | 1600 HV30 |
| Revêtement | A - EZI-ALPHA 3 |
Material compatibility
●●● Excellent (3/3)
●●○ Good (2/3)
●○○ Possible (1/3)
○○○ Not recommended
| Material | Specification | Grp | 21740A-8-R2 | ||
|---|---|---|---|---|---|
| Alloyed and non-alloyed steelsNon-alloyed steels | Rm < 450 N/mm² | 1a | ●●● 3/3 | Calculate | |
| Rm 450–700 N/mm² | 1b | ●●● 3/3 | Calculate | ||
| Rm 700–900 N/mm² | 1c | ●●● 3/3 | Calculate | ||
| Rm > 1200 N/mm² | 1d | ●●● 3/3 | Calculate | ||
| Stainless steelsStainless steels | Rm < 650 N/mm² | 2a | ●●● 3/3 | Calculate | |
| Rm 650–950 N/mm² | 2b | ●●● 3/3 | Calculate | ||
| Rm > 950 N/mm² | 2c | ●●● 3/3 | Calculate | ||
| Hardened steelsHardened steels | 44–56 HRC | 3a | ●●○ 2/3 | Calculate | |
| 57–67 HRC | 3b | ●○○ 1/3 | Calculate | ||
| Exotic materialsSpecial alloys | < 32 HRC | 4a | ●●○ 2/3 | Calculate | |
| > 32 HRC | 4b | ●●○ 2/3 | Calculate | ||
| GraphiteIndustrial graphite | 5 | ●●● 3/3 | Calculate | ||
| Cast ironGrey / nodular cast iron | < 32 HRC | 6a | ●●● 3/3 | Calculate | |
| > 32 HRC | 6b | ●●● 3/3 | Calculate | ||
| TitaniumTitanium alloys | Rm < 600 N/mm² | 7a | ●●● 3/3 | Calculate | |
| 600 < Rm N/mm² | 7b | ●●● 3/3 | Calculate | ||
| Nickel alloysInconel, Hastelloy | Rm < 1000 N/mm² | 8a | ●●○ 2/3 | Calculate | |
| Rm > 1000 N/mm² | 8b | ●●○ 2/3 | Calculate | ||
| Copper, brass, bronzeCopper-based | Rm < 850 N/mm² | 9a | ●●○ 2/3 | Calculate | |
| Rm > 850 N/mm² | 9b | ●●○ 2/3 | Calculate | ||
| AluminumAluminum alloys | Si < 0.5% | 10a | ●●○ 2/3 | Calculate | |
| 0.5% < Si < 5% | 10b | ●●○ 2/3 | Calculate | ||
| Si > 5% | 10c | ●●● 3/3 | Calculate | ||
| Synthetic materialsEngineering plastics | Thermoplastic | 11a | ●○○ 1/3 | Calculate | |
| Thermoset | 11b | ●○○ 1/3 | Calculate | ||
| Composite materialsReinforced composites | Glass fiber / GFK | 12a | ●●● 3/3 | Calculate | |
| Carbon fiber / KFK | 12b | ●●● 3/3 | Calculate | ||
| Precious metalsGold, platinum, silver | Gold | 13a | ●●○ 2/3 | Calculate | |
| Platinum | 13b | ●●○ 2/3 | Calculate |
Form-Relieved-Corner-Rouding-Tool-SC-E2-+-EZI-ALPHA
21740A-8-R2
Downloads
Dimensions
| D (Ø / d.01) | 8 mm |
| d (h5) | 8 mm |
| L total | 63 mm |
| l1 usable | 2 mm |
| e | 3 mm |
| Z flutes | 4 |
Scanner pour
EZI CUT