Die/Mold End Mills Usage Guidelines
General Guidelines
  • OneStep™ End Mills work best when cutting towards the tip of the cutter
  • The best way to engage into the material is by helical interpolation
  • Constant Z-level roughing should be used, whenever possible
  • Use Climb Milling for better finish and longer tool life
  • Good machines, tool holders, and programming methods all help in extending tool life
    		•
    Additional Notes
  • There is an 8° per side draft angle (blend angle) on all tools 3/16” (standard), 5mm (metric), and smaller to blend the cutting diameter to the larger shank diameter.
  • Special draft angles (blend angle) or necked shanks for part clearance are available upon request.
  • Special diameters, lengths and through-tool coolant holes are available on a make-to-order basis.
    		•
    Coolant
  • Below 45 HRc – High pressure air or coolant
  • Above 45 HRc – High pressure air
    • Roughing and Semi-finishing

    Tool
    Number

    Dia.

    RPM

    Steels 30–40HRc

    Steels 40–50HRc

    Steels 50–60HRc

    DM-201-01

    1/32"

    20,000-40,000

    20,000-40,000

    20,000-40,000

    DM-201-02

    1/16"

    20,000-40,000

    20,000-40,000

    20,000-36,000

    DM-201-03

    3/32"

    20,000-32,000

    20,000-32,000

    16,000-24,000

    DM-201-04

    1/8"

    15,000-24,000

    18,000-24,000

    12,000-18,000

    DM-201-06

    3/16"

    10,000-16,000

    12,000-16,000

    8,100-12,000

    DM-201-08

    1/4"

    7,600-12,000

    9,100-12,000

    6,100-9,100

    DM-201-10

    5/16"

    6,000-9,700

    7,300-9,700

    4,800-7,300

    DM-201-12

    3/8"

    5,000-8,100

    6,100-8,100

    4,000-6,100

    DM-201-14

    7/16"

    4,300-6,900

    5,200-6,900

    3,400-5,200

    DM-201-16

    1/2"

    3,800-6,100

    4,500-6,100

    3,000-4,500

    (Use maximum RPM if suggested RPM is higher than the machine's capabilities.)

    Finishing

    Tool
    Number

    Dia.

    RPM

    Steels 30–40HRc

    Steels 40–50HRc

    Steels 50–60HRc

    DM-201-01

    1/32"

    20,000-40,000

    20,000-40,000

    20,000-40,000

    DM-201-02

    1/16"

    20,000-40,000

    20,000-40,000

    20,000-40,000

    DM-201-03

    3/32"

    20,000-40,000

    20,000-40,000

    20,000-40,000

    DM-201-04

    1/8"

    20,000-36,600

    20,000-40,000

    20,000-30,500

    DM-201-06

    3/16"

    20,000-24,000

    20,000-32,000

    16,000-23,300

    DM-201-08

    1/4"

    15,000-18,000

    18,000-24,400

    12,000-15,000

    DM-201-10

    5/16"

    12,000-14,000

    14,600-19,000

    9,700-12,000

    DM-201-12

    3/8"

    10,000-12,000

    12,000-16,200

    8,100-10,000

    DM-201-14

    7/16"

    8,700-10,400

    10,000-13,900

    6,900-8,700

    DM-201-16

    1/2"

    7.600-9,100

    9,100-12,200

    6,100-7,600

    (Use maximum RPM if suggested RPM is higher than the machine's capabilities.)

    Chip Load Per Tooth

    Tool
    Number

    Dia.

    Chip Load per Tooth

    Steels 30–40HRc

    Steels 40–50HRc

    Steels 50–60HRc

    Roughing

    Finishing

    Roughing

    Finishing

    Roughing

    Finishing

    DM-201-01

    1/32"

    .0006-.0008

    .0005-.0006

    .0005-.0006

    .0004-.0005

    .0004-.0005

    .0003-.0004

    DM-201-02

    1/16"

    .0013-.0015

    .0010-.0013

    .0010-.0013

    .0008-.0010

    .0008-.0010

    .0005-.0008

    DM-201-03

    3/32"

    .0019-.0023

    .0015-.0019

    .0015-.0019

    .0011-.0015

    .0011-.0015

    .0008-.0011

    DM-201-04

    1/8"

    .0025-.0030

    .0020-.0025

    .0020-.0025

    .0015-.0020

    .0015-.0020

    .0010-.0015

    DM-201-06

    3/16"

    .0038-.0045

    .0030-.0038

    .0030-.0038

    .0023-.0030

    .0023-.0030

    .0015-.0023

    DM-201-08

    1/4"

    .0050-.0060

    .0040-.0050

    .0040-.0050

    .0030-.0040

    .0030-.0040

    .0020-.0030

    DM-201-10

    5/16"

    .0063-.0075

    .0050-.0063

    .0050-.0063

    .0038-.0050

    .0038-.0050

    .0025-.0038

    DM-201-12

    3/8"

    .0075-.0090

    .0060-.0075

    .0060-.0075

    .0045-.0060

    .0045-.0060

    .0030-.0045

    DM-201-14

    7/16"

    .0088-.0105

    .0070-.0088

    .0070-.0088

    .0053-.0070

    .0053-.0070

    .0035-.0053

    DM-201-16

    1/2"

    .0100-.0120

    .0080-.0100

    .0080-.0100

    .0060-.0080

    .0060-.0080

    .0040-.0060

    (Speed and Feeds are only general starting points and may vary depending on specific application.)