HELIOS ® Ideal for Deep Hole, No Peck Drilling List 1750 - HELIOS®: 10D List 1760 - HELIOS®: 15D List 1770 - HELIOS®: 20D
General Drilling Operations
Carbon Steels Mild Steels 1010, 1050, 12L14
Tool Steels Die Steels D2, H13, P20, S7
Work Material
Alloy Steels 4140, 4130
Stainless Steels 300, 400, 17-4 PH
Drilling Speed
65-80 SFM
60-75 SFM
40-55 SFM
20-45 SFM
Drill Dia.
Speed RPM
Feed IPR
Speed RPM
Feed IPR
Speed RPM
Feed IPR
Speed RPM
Feed IPR
mm Inch 2 -
3,510
0.001-0.002 0.001-0.002 0.001-0.003 0.001-0.003 0.002-0.004 0.002-0.005 0.002-0.005 0.002-0.005 0.002-0.006 0.003-0.006 0.003-0.008 0.004-0.009 0.004-0.010 0.004-0.011 0.005-0.012 0.005-0.012 0.005-0.014 0.006-0.014
3,270 2,750 2,180 2,060 1,630 1,370 1,310 1,180 1,090 1,030
0.001-0.002 0.001-0.002 0.001-0.003 0.001-0.003 0.002-0.004 0.002-0.005 0.002-0.005 0.002-0.005 0.002-0.006 0.003-0.006 0.003-0.008 0.004-0.009 0.004-0.010 0.004-0.011 0.005-0.012 0.005-0.012 0.005-0.014 0.006-0.014
2,300 1,930 1,530 1,450 1,150
0.001-0.002 0.001-0.002 0.001-0.003 0.001-0.003 0.002-0.004 0.002-0.005 0.002-0.005 0.002-0.005 0.002-0.006 0.003-0.006 0.003-0.008 0.004-0.009 0.004-0.010 0.004-0.011 0.005-0.012 0.005-0.012 0.005-0.014 0.006-0.014
1,570 1,320 1,050
0.001-0.002 0.001-0.002 0.001-0.003 0.001-0.003 0.002-0.004 0.002-0.005 0.002-0.005 0.002-0.005 0.002-0.006 0.003-0.006 0.003-0.007 0.004-0.009 0.004-0.009 0.004-0.010 0.005-0.011 0.005-0.011 0.005-0.012 0.006-0.012
-
3/32 2,950
3
-
2,340 2,210 1,750
-
1/8
990 790 660 630 570 520 500 400 330 315 280 260 250 225 220
4
-
-
3/16 1,470
970 920 830 770 720 580 480 460 410 380 360 330 320
5
-
1,400
-
7/32 1,260
6
-
1,170 1,100
-
1/4
8
-
880 740 700 630 580 550 500 490
820 690 650 590 550 520 470 460
-
3/8
10
-
-
7/16
12
-
-
1/2
14
-
-
9/16
For Stainless Steel and Aluminum Alloys, peck cycles may be necessary.
General Drilling Operations
Work Material
Aluminum Alloy, Cast Aluminum
Ti Alloy Ti-6Al-4V
Ductile Cast Iron
Cast Iron
Drilling Speed
55-65 SFM
60-80 SFM
105-205 SFM
20-45 SFM
Drill Dia.
Speed RPM
Feed IPR
Speed RPM
Feed IPR
Speed RPM
Feed IPR
Speed RPM
Feed IPR
mm Inch 2 -
2,910
0.001-0.002 0.001-0.002 0.001-0.003 0.001-0.003 0.001-0.004 0.001-0.005 0.001-0.005 0.001-0.005 0.001-0.006 0.002-0.006 0.002-0.008 0.002-0.009 0.002-0.010 0.003-0.011 0.003-0.012 0.003-0.012 0.003-0.014 0.003-0.014
3,390 2,850 2,260 2,140 1,700 1,420 1,350 1,225 1,130 1,070
0.001-0.002 0.002-0.003 0.002-0.004 0.002-0.004 0.003-0.005 0.004-0.006 0.004-0.006 0.004-0.007 0.005-0.008 0.005-0.008 0.006-0.010 0.008-0.012 0.008-0.013 0.009-0.014 0.009-0.015 0.010-0.016 0.011-0.018 0.011-0.018
7,510 6,310 5,010 4,730 3,760 3,150 3,000 2,700 2,500 2,360 1,880 1,580 1,500 1,350 1,250 1,180 1,070 1,050
0.002-0.003 0.003-0.004 0.004-0.005 0.004-0.005 0.005-0.006 0.006-0.007 0.006-0.008 0.007-0.009 0.007-0.009 0.008-0.010 0.009-0.013 0.011-0.015 0.012-0.016 0.013-0.018 0.014-0.019 0.015-0.020 0.016-0.022 0.017-0.022
1,570 1,320 1,050
0.0005-0.0015 0.0005-0.0015 0.0005-0.0015 0.0005-0.0015 0.0010-0.0020 0.0010-0.0025 0.0010-0.0025 0.0010-0.0025 0.0010-0.0030 0.0015-0.0030 0.0015-0.0035 0.0020-0.0040 0.0020-0.0045 0.0020-0.0050 0.0025-0.0050 0.0025-0.0050 0.0025-0.0060 0.0030-0.0060
-
3/32 2,440
3
-
1,940 1,830 1,450
-
1/8
990 790 660 630 570 520 500 400 330 315 280 260 250 225 220
4
-
-
3/16 1,220
5
-
1,160
-
7/32 1,050
6
-
970 920 730 610 580 525 485 460 415 405
-
1/4
8
-
850 710 680 610 570 535 485 475
-
3/8
10
-
-
7/16
12
-
-
1/2
14
-
-
9/16
For Stainless Steel and Aluminum Alloys, peck cycles may be necessary. For deep hold drilling procedure please refer to page: 310-311.
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Drilling Technical
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