HY-PRO ® CARB Performance Sub-Micrograin Carbide End Mills
List HP441
Side Milling (Fractional)
Hardness
ā
<20 HRC
<30 HRC
30-38 HRC
38-45 HRC
45-55 HRC
55-60 HRC
Hardened Steels Pre-hardened Steels Ti Alloys (Solution Treated and Aged)
Hardened Steels Pre-hardened Steels Stainless Steels Inconel Ni Based Alloys
Alloy Steels Tool Steels Ti Alloys (Annealed)
Work Material
Mild Steels Carbon Steels
Hardened Steels
Hardened Steels
Cast Iron
Cutting Speed
390 SFM 330 SFM 270 SFM
220 SFM
190 SFM
120 SFM
80 SFM
a a
a r
Dia
a a=1D a r=0.02D
Depth of Cut
Dā¤1/8 1.5D 0.05D 1/8<D 1.5D 0.10D
Speed RPM
Feed in/min
Speed RPM
Feed in/min
Speed RPM
Feed in/min
Speed RPM
Feed in/min
Speed RPM 11,605 13,435 10,075
Feed in/min
Speed RPM 7,330 4,885 3,665 2,930 2,360 1,775 1,390 1,200 1,035
Feed in/min
Speed RPM 5,400 3,260 2,445 1,955 1,565 1,205
Feed in/min
Mill Dia.
1/16 3/32
23,820 17.6 20,155 13.9 15,670 11.2 13,435 16,305 21.5 13,720 18.1 11,550 14.5 13,435 12,060 28.4 10,205 24.0 8,245 16.0 10,075 9,630 29.9 8,060 25.0 8,060 17.9 5,170 8,075 33.7 6,740 28.3 6,720 22.0 4,455 5,955 29.0 5,090 28.9 4,235 20.0 3,375 4,820 33.6 4,000 27.8 3,330 19.8 2,660 4,005 33.6 3,360 27.8 2,795 19.8 2,225 3,440 33.6 2,870 27.8 2,405 19.8 1,895 3,010 32.7 2,510 27.5 2,090 19.7 1,655 2,355 31.4 1,995 26.1 1,630 19.6 1,325 1,920 29.7 1,605 24.9 1,350 15.7 1,095
5.8 9.0 8.3 6.3 6.5 6.9 6.9 6.9 6.9 6.9 6.1 5.0 3.9
4.9 9.6 9.6 5.3 5.7 6.1 6.1 6.1 6.1 6.0 5.4 4.5 3.5
2.8 3.4 3.3 3.6 3.5 3.3 3.2 3.8 3.4 2.7 2.3 1.7 1.4
1.6 2.2 2.3 2.4 2.0 1.9 1.7 1.7 1.5 1.3 0.9 1.0 0.7
1/8
5/32 3/16
4,475 3,935 3,030 2,360 1,970 1,690 1,475 1,200
1/4
5/16
960 800 690 600 470 405 300
3/8
7/16
1/2 5/8 3/4
900 720 580 440
975 750
1
1,485 23.3 1,240 19.5 1,050 14.0
840
For High Speed see milling parameters, pg 1396-1397.
osgtool.com
1394
End Mill Technical
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