Carbide Micrograin Carbide End Mills
Slotting (Fractional)
Hardness
<20 HRC
20-30 HRC
–
–
30-40 HRC
40-50 HRC
Work Material Cutting Speed
Mild Carbon Steels Mild Steels
Pre-hardened Steels Die & Alloy Steels
Pre-hardened Steels Die & Alloy Steels
Cast Iron
Aluminum
Hardened Steels
100-130 SFM
65-100 SFM
100-150 SFM
330 SFM
65-82 SFM
43 SFM
Dia a a D<1/32 0.2D 1/32<D<5/64 0.3D 5/64<D 0.5D
Depth of Cut
Speed RPM 14,630
Feed in/min
Speed RPM 10,495
Feed in/min
Speed RPM 15,905 10,180
Feed in/min
Speed RPM 25,000 25,000 20,155 16,120 10,075
Feed in/min
Speed RPM
Feed in/min
Speed RPM
Feed in/min
Mill Dia.
0.030 3/64 1/16 5/64
3.7 3.1 4.0 4.9 4.5 4.9 5.1 4.6 4.8 5.1 4.6 4.8 5.1 4.8
1.8 1.5 1.6 2.7 3.4 3.6 3.6 3.4 3.6 3.6 3.3 3.7 3.9 3.7
6.9 5.7 6.3 7.1 7.1 7.7 8.1 8.9
6.9 8.7
9,350 5,985 4,490 3,590 2,245 1,795 1,495 1,120
0.9 0.7 1.0 1.5 1.5 1.5 1.6 1.5 1.5 1.6 1.4 1.8 1.9 1.8
5,470 3,500 2,625 2,100 1,315 1,050
0.4 0.3 0.5 0.8 0.7 0.8 0.8 0.7 0.8 0.8 0.7 0.6 0.6 0.3
9,365 7,025 5,620 3,510 2,810 2,340 1,755 1,405 1,170
6,720 5,040 4,030 2,520 2,015 1,680 1,260 1,010
7,635 6,105 3,815 3,055 2,545 1,910 1,525 1,270
10.5 16.6 14.8 16.6 17.6 15.7 16.6 17.6 15.7 16.6 17.3 16.6
1/8
5/32 3/16
8,060 6,720 5,040 4,030 3,360 2,520 2,015 1,680 1,260
875 655 525 440 330 265 220 165
1/4
5/16
11.0 11.8 10.5 11.1 11.6 11.0
900 750 560 450 375 280
3/8 1/2 5/8 3/4
840 630 505 420 315
880 700 585 440
955 765 635 475
1
Slotting (Metric)
Hardness
<20 HRC
20-30 HRC
–
–
30-40 HRC
40-50 HRC
Work Material Cutting Speed
Mild Carbon Steels Mild Steels
Pre-hardened Steels Die & Alloy Steels
Pre-hardened Steels Die & Alloy Steels
Cast Iron
Aluminum
Hardened Steels
100-130 SFM
65-100 SFM
100-150 SFM
330 SFM
65-82 SFM
43 SFM
a a
Dia
Depth of Cut
D<0.8 0.2D 0.8<D<2 0.3D 2<D 0.5D
Speed RPM 13,935 11,150
Feed in/min
Speed RPM 10,000
Feed in/min
Speed RPM 15,150 12,120
Feed in/min
Speed RPM 25,000 25,000 21,330 15,995 10,665
Feed in/min
Speed RPM
Feed in/min
Speed RPM
Feed in/min
Mill Dia.
0.8 1.0 1.5 2.0 3.0 4.0 5.0 6.0 8.0
3.4 3.7 4.3 4.9 4.8 4.9 4.9 4.8 4.8 4.9 4.8 4.8 4.9 4.9
1.7 1.8 1.6 2.7 3.6 3.6 3.5 3.6 3.6 3.5 3.5 3.7 3.8 3.8
6.5 6.8 6.7 7.1 7.5 7.6 7.7 9.4
6.9 8.7
8,905 7,125 4,750 3,565 2,375 1,780 1,425 1,190
0.9 0.8 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.4 1.8 1.7 1.8
5,210 4,170 2,780 2,085 1,390 1,040
0.3 0.3 0.5 0.8 0.8 0.8 0.8 0.8 0.8 0.7 0.7 0.6 0.5 0.4
8,000 5,330 4,000 2,665 2,000 1,600 1,335 1,000
7,435 5,575 3,715 2,785 2,230 1,860 1,395 1,115
8,080 6,060 4,040 3,030 2,425 2,020 1,515 1,210 1,010
11.1 16.5 15.7 16.5 16.8 16.6 16.5 16.8 16.6 16.5 16.5 16.9
8,000 6,400 5,330 4,000 3,200 2,665 2,000 1,600 1,280
835 695 520 415 345 260 210 165
10.9 11.2 11.1 10.9 11.1 11.3
890 715 595 445 355 285
10.0 12.0 16.0 20.0 25.0
800 665 500 400 320
930 695 555 445
755 605 485
osgtool.com
1407
End Mill Technical
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