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Carbide end mills
4 teeth with helix 45°
OR452
Carbide end mills 
4 teeth 
with double helix
OR411, OR411G

Carbide end mills 4 teeth with double helix OR411, OR411G

Recommended for use
< 60 HRc < 1600 N/mm2 Steel Stainless Steel Cast Iron

Applicable
hard to machine materials

Coating
AlCrN AlCrZrN

Carbide end mills 
4 teeth 
with double helix
OR411, OR411G
Catalogue
number
Diameter
D1 h10
Corner
edge 
K x 45°
Overall
length
L1
Length
of edge 
L2
Shank
diameter 
D2 h6
OR411.020
OR411.020G
20,055054
OR411.030
OR411.030G
30,075786
OR411.040
OR411.040G
40,0757126
OR411.050
OR411.050G
50,0757136
OR411.060
OR411.060G
60,0757156
OR411.080
OR411.080G
80,1263198
OR411.100
OR411.100G
100,2722410
OR411.120
OR411.120G
120,2832812
OR411.160
OR411.160G
160,2923516
OR411.200
OR411.200G
200,31104220
OR411.250
OR411.250G
250,31255025

Optimised for trochoidal and helical milling (ramp) • tapering of the neck as well as the drilling of the tool.

Tools also in Golden edition with AlCrZrN coating.

The combined zirconium-based coating with a gold surface layer improves sliding properties and chip removal, reduces cutting resistance and cutting edge wear. 



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Carbide end mills 4 flutes, for tough applications - UNI & HARD
HR411, HR411G