TG_SFC_US-EN

THREADING | Solid Carbide and Indexable Thread Mills

XTP TAP TAS HPU APX 4TX REV OPN SSD ACP BTA WHL CRT ALV BRN THM Thread Milling: Recommended Cutting Data | Imperial (inch) Indexable | AccuThread® 856 | Positive Rake ISO Material Hardness (BHN) Machinability** Speed (SFM) 1 flute 0.375" - 0.500" P Free-Machining Steel 100 - 150 Easy 1118, 1215, 12L14, etc. 150 - 200 Easy 200 - 250 Easy Low-Carbon Steel 1010, 1020, 1025, 1522, 1144 Medium-Carbon Steel 1010, 1040, 1050, 1527, 1140 Alloy Steel 4140, 5140, 8640 High-Strength Alloy 4340, 4330V, 300M 300 - 350 Difficult 350 - 400 Difficult Structural Steel A36, A285, A516 S High-Temp Alloy 140 - 220 Difficult Hastelloy B, Inconel 600 220 - 310 Difficult 90 M Stainless Steel 135 - 185 Difficult 303, 416, 420 185 - 275 Difficult Stainless Steel PH 185 - 275 Difficult 17-4 275 - 325 Difficult Tool Steel 150 - 200 Difficult H-13, H21, A-4 200 - 250 Difficult K Cast Iron 120 - 150 Easy Grey, Ductile, Nodular 150 - 200 Easy 200 - 220 Easy N Wrought Aluminum 30 Easy 6061 T6 180 Easy Cast Aluminum** up to 10% silicon 120 Easy Brass 30 - 125 Easy NOTICE: Reduce feed and speed by 30% for tapered thread forms due to additional material removal *Refer to recommended pass chart on page E: 53 when referencing material machinability **Uncoated thread mills are recommended for cast aluminum applications 0.501" - 0.750"

Recommended Feed (inch/tooth) by Cutter Diameter

1 and 2 flutes 0.751" - 1.000"

3 flutes

5 flutes

7 flutes

8 flutes

1.001" - 1.500"

1.501" - 2.000"

2.001" - 2.750"

2.751" - 3.500"

900 0.0008 0.0010 0.0012 0.0015 0.0020 0.0025 0.0030 700 0.0008 0.0010 0.0012 0.0015 0.0020 0.0025 0.0030 500 0.0008 0.0010 0.0012 0.0015 0.0020 0.0025 0.0030

85 - 125 Average 900 0.0008 0.0010 0.0012 0.0015 0.0020 0.0025 0.0030 125 - 175 Average 700 0.0008 0.0010 0.0012 0.0015 0.0020 0.0025 0.0030 175 - 225 Average 600 0.0008 0.0010 0.0012 0.0015 0.0020 0.0025 0.0030 225 - 275 Average 500 0.0008 0.0010 0.0012 0.0015 0.0020 0.0025 0.0030 125 - 175 Average 575 0.0008 0.0009 0.0010 0.0012 0.0015 0.0020 0.0025 175 - 225 Average 500 0.0008 0.0009 0.0010 0.0012 0.0015 0.0020 0.0025 225 - 275 Average 450 0.0008 0.0009 0.0010 0.0012 0.0015 0.0020 0.0025 275 - 325 Average 400 0.0008 0.0009 0.0010 0.0012 0.0015 0.0020 0.0025 125 - 175 Average 575 0.0008 0.0009 0.0010 0.0012 0.0015 0.0020 0.0025 175 - 225 Average 500 0.0008 0.0009 0.0010 0.0012 0.0015 0.0020 0.0025 225 - 275 Average 450 0.0008 0.0009 0.0010 0.0012 0.0015 0.0020 0.0025 275 - 325 Difficult 400 0.0008 0.0009 0.0010 0.0012 0.0015 0.0020 0.0025 325 - 375 Difficult 375 0.0008 0.0009 0.0010 0.0012 0.0015 0.0020 0.0025 225 - 300 Average 450 0.0008 0.0009 0.0010 0.0012 0.0015 0.0020 0.0025

400 0.0008 0.0009 0.0010 0.0012 0.0015 0.0020 0.0025 350 0.0008 0.0009 0.0010 0.0012 0.0015 0.0020 0.0025

100 - 150 Average 600 0.0008 0.0010 0.0012 0.0015 0.0020 0.0025 0.0030 150 - 250 Average 500 0.0008 0.0010 0.0012 0.0015 0.0020 0.0025 0.0030 250 - 350 Difficult 450 0.0008 0.0010 0.0012 0.0015 0.0020 0.0025 0.0030

120 0.0005 0.0006 0.0008 0.0010 0.0015 0.0020 0.0025 0.0005 0.0006 0.0008 0.0010 0.0015 0.0020 0.0025 525 0.0005 0.0007 0.0009 0.0015 0.0020 0.0025 0.0030 500 0.0005 0.0007 0.0009 0.0015 0.0020 0.0025 0.0030 300 0.0005 0.0007 0.0009 0.0015 0.0020 0.0025 0.0030 150 0.0005 0.0007 0.0009 0.0015 0.0020 0.0025 0.0030 575 0.0008 0.0010 0.0012 0.0015 0.0020 0.0025 0.0030 500 0.0008 0.0010 0.0012 0.0015 0.0020 0.0025 0.0030 675 0.0008 0.0012 0.0015 0.0020 0.0030 0.0040 0.0050 625 0.0008 0.0012 0.0015 0.0020 0.0030 0.0040 0.0050

575 0.0008 0.0012 0.0015 0.0020 0.0030 0.0040 0.0050 220 - 260 Average 500 0.0008 0.0012 0.0015 0.0020 0.0030 0.0040 0.0050 260 - 320 Average 475 0.0008 0.0012 0.0015 0.0020 0.0030 0.0040 0.0050

1100 0.0015 0.0020 0.0025 0.0030 0.0040 0.0050 0.0060 1000 0.0015 0.0020 0.0025 0.0030 0.0040 0.0050 0.0060 625 0.0015 0.0020 0.0025 0.0030 0.0040 0.0050 0.0060 1100 0.0020 0.0025 0.0030 0.0040 0.0045 0.0055 0.0065

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