HY-PRO ® CARB Performance Sub-Micrograin Carbide End Mills
List HP434
Side Milling (Fractional)
Hardness
–
<20 HRC
20-30 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
D≤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
Feed in/min
Speed RPM
Feed in/min
Speed RPM
Feed in/min
Mill Dia.
1/8
11,910 28.0 10,075 23.7
8,245 5,495 4,120 3,300 2,750 2,060 1,650 1,375 1,030
16.0 18.0 19.5 19.6 19.5 19.4 19.8 16.0 13.7
6,720 4,480 3,360 2,685 2,240 1,680 1,345 1,120
5.6 6.5 6.9 7.0 6.9 7.0 6.2 5.1 3.9
5,800 3,870 2,900 2,320 1,935 1,450 1,160
5.5 5.6 5.8 6.0 6.0 5.9 5.2 4.5 3.4
3,665 2,445 1,830 1,465 1,220
3.3 3.6 3.4 3.4 3.9 2.7 2.3 1.8 1.5
2,445 1,630 1,220
2.3 2.1 1.9 1.7 1.7 1.3 0.9 1.0 0.7
3/16
7,940 5,955 4,765 3,970 2,975 2,380 1,985 1,490
33.1 29.0 33.2 33.3 32.3 31.7 30.7 23.4
6,720 5,040 4,030 3,360 2,520 2,015 1,680 1,260
28.2 28.6 28.0 27.8 27.6 26.4 26.1 19.8
1/4
5/16
975 815 610 490 405 305
3/8 1/2 5/8 3/4
915 735 610 460
965 725
1
840
For Slotting, reduce feeds 20% to 50%.
List HP434
Side Milling (Metric)
Hardness
–
<20 HRC
20-30 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
Cast Iron
Hardened Steels Hardened Steels
Cutting Speed
390 SFM
330 SFM
270 SFM
220 SFM
190 SFM
120 SFM
80 SFM
a a
a r
Dia D≤3
a a=1D a r=0.02D
Depth of Cut
1.5D 0.05D 3<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
Feed in/min
Speed RPM
Feed in/min
Speed RPM
Feed in/min
Mill Dia.
3 4 5 6 8
12,605 29.7 10,665 25.1
8,725 6,545 5,235 4,365 3,270 2,620 2,180
17.0 14.5 20.2 20.6 19.4 20.2 20.5
7,110 5,330 4,265 3,555 2,665 2,135 1,775
5.9 6.5 6.8 7.2 6.9 7.2 7.4
6,140 4,605 3,685 3,070 2,300 1,840 1,535
5.8 5.5 5.9 6.2 6.0 6.2 6.2
3,880 2,910 2,325 1,940 1,455 1,165
3.6 3.6 3.7 3.6 3.4 4.1 2.9
2,585 1,940 1,550 1,295
2.4 2.3 2.1 2.0 1.7 1.7 1.4
9,450 7,560 6,300 4,725 3,780 3,150
29.4 34.7 30.7 32.9 34.5 34.3
8,000 6,400 5,330 4,000 3,200 2,665
24.8 30.2 30.2 27.8 28.8 29.3
970 775 645
10 12
970
For Slotting, reduce feeds 20% to 50%.
osgtool.com
1458
End Mill Technical
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