X Series Usage Guidelines
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Speed Feed X Series
Speed Feed Metric
Speed Feed XF Series
Slotting
Profiling
Finish Profiling
General Guidelines
  • Speed and feeds are based on applications with very rigid machine tools, toolholders, and fixturing. Speeds and feeds will vary dramatically depending on the application. Extreme forces can be generated and can cause damage, if not appropriate for the cutting conditions.
  • Helical interpolation or ramping should be used to enter pockets.
  • For the highest material removal rates and longest tool life profile milling is preferred over slotting (See diagrams below).
  • Climb milling is recommended.
  • For Ball end tools reduce feed rate by 10%
  • X-Series Speeds and Feeds

    Material

    Surface
     Footage

    1/4

    5/16

    3/8

    1/2

    5/8

    3/4

    1

    RPM

    in/min

    RPM

    in/min

    RPM

    in/min

    RPM

    in/min

    RPM

    in/min

    RPM

    in/min

    RPM

    in/min

    Cast Iron

    Ductile

    400

    6112

    28

    4890

    34

    4075

    39

    3056

    43

    2445

    39

    2037

    34

    1528

    30

    Gray

    525

    8022

    42

    6418

    51

    5348

    58

    4011

    64

    3209

    58

    2674

    51

    2006

    45

    Inconel

    625/718

    100

    1528

    4

    1222

    5

    1019

    6

    764

    7

    611

    6

    509

    5

    382

    5

    Steel

    1018/1020

    500

    7640

    32

    6112

    39

    5093

    44

    3820

    49

    3056

    44

    2547

    39

    1910

    34

    4130

    400

    6112

    20

    4890

    24

    4075

    28

    3056

    31

    2445

    28

    2037

    24

    1528

    21

    4140

    400

    6112

    20

    4890

    24

    4075

    28

    3056

    31

    2445

    28

    2037

    24

    1528

    21

    4340

    415

    6341

    21

    5073

    25

    4227

    29

    3171

    32

    2536

    29

    2114

    25

    1585

    22

    Stainless Steel

    303

    550

    8404

    31

    6723

    38

    5603

    43

    4202

    48

    3362

    43

    2801

    38

    2101

    34

    304

    400

    6112

    17

    4890

    22

    4075

    24

    3056

    27

    2445

    24

    2037

    22

    1528

    19

    316

    400

    6112

    17

    4890

    22

    4075

    24

    3056

    27

    2445

    24

    2037

    22

    1528

    19

    15-5/17-4

    300

    4584

    13