Ref. 21203-0.3
Finishing endmill
Micro-Endmill Z3
Solid carbide E25UF — 3 flutes, sharp corner, Ø 0.3 mm
Swiss Made
ULTRAFINE GRADE High-end grade with very high hardness and toughness for micro-machining
Variable helix angles 35° - 38° and cutting angle 10°
Sharp edge
Side and center cut
Cutting edge length 3xD
Fitting length long
Irregular toothing
Variable helix angles
Specifications
Dimensions
| Diameter (D) | 0.3 mm |
| Shank diameter (d) | 3 mm (h5) |
| Overall length (L) | 38 mm |
| Cutting length (l1) | 0.9 mm |
| Number of flutes (Z) | 3 |
| w° collision angle | 11.5° |
Material & geometry
| Grade | E25UF |
| Grain size | < 0.4 µm |
| Hardness | 1750 HV30 |
| Coating | Uncoated (raw) |
Material compatibility
●●● Excellent (3/3)
●●○ Good (2/3)
●○○ Possible (1/3)
○○○ Not recommended
| Category | Material | Specification | Grp | 21203-0.3 | Actions |
|---|---|---|---|---|---|
| Alloyed and non-alloyed steelsNon-alloyed steels | Rm < 450 N/mm² | 1a | ●○○ 1/3 | Calculate | |
| Rm 450–700 N/mm² | 1b | ○○○ 0/3 | |||
| Rm 700–900 N/mm² | 1c | ○○○ 0/3 | |||
| Rm > 1200 N/mm² | 1d | ○○○ 0/3 | |||
| Stainless steelsStainless steels | Rm < 650 N/mm² | 2a | ○○○ 0/3 | ||
| Rm 650–950 N/mm² | 2b | ○○○ 0/3 | |||
| Rm > 950 N/mm² | 2c | ○○○ 0/3 | |||
| Hardened steelsHardened steels | 44–56 HRC | 3a | ○○○ 0/3 | ||
| 57–67 HRC | 3b | ○○○ 0/3 | |||
| Exotic materialsSpecial alloys | < 32 HRC | 4a | ●○○ 1/3 | Calculate | |
| > 32 HRC | 4b | ●○○ 1/3 | Calculate | ||
| GraphiteIndustrial graphite | 5 | ●○○ 1/3 | Calculate | ||
| Cast ironGrey / nodular cast iron | < 32 HRC | 6a | ○○○ 0/3 | ||
| > 32 HRC | 6b | ○○○ 0/3 | |||
| TitaniumTitanium alloys | Rm < 600 N/mm² | 7a | ●○○ 1/3 | Calculate | |
| 600 < Rm N/mm² | 7b | ●○○ 1/3 | Calculate | ||
| Nickel alloysInconel, Hastelloy | Rm < 1000 N/mm² | 8a | ○○○ 0/3 | ||
| Rm > 1000 N/mm² | 8b | ○○○ 0/3 | |||
| Copper, brass, bronzeCopper-based | Rm < 850 N/mm² | 9a | ●●● 3/3 | Calculate | |
| Rm > 850 N/mm² | 9b | ●●● 3/3 | Calculate | ||
| AluminumAluminum alloys | Si < 0.5% | 10a | ●●○ 2/3 | Calculate | |
| 0.5% < Si < 5% | 10b | ●●○ 2/3 | Calculate | ||
| Si > 5% | 10c | ●○○ 1/3 | Calculate | ||
| Synthetic materialsEngineering plastics | Thermoplastic | 11a | ●●● 3/3 | Calculate | |
| Thermoset | 11b | ●●○ 2/3 | Calculate | ||
| Composite materialsReinforced composites | Glass fiber / GFK | 12a | ●○○ 1/3 | Calculate | |
| Carbon fiber / KFK | 12b | ●○○ 1/3 | Calculate | ||
| Precious metalsGold, platinum, silver | Gold | 13a | ●●○ 2/3 | Calculate | |
| Platinum | 13b | ○○○ 0/3 |
Available coatings
Micro-Endmill Z3
21203-0.3
Downloads
Dimensions
| D (Ø / d.01) | 0.3 mm |
| d (h5) | 3 mm |
| L total | 38 mm |
| l1 usable | 0.9 mm |
| Z flutes | 3 |
| w° collision angle | 11.5° |
Scan for EziCut