HM Series – Hard Metal Machining

RobbJack’s new HM Series of Bull Nose style end mills are designed for semi-finishing and finishing straight walls and large flat areas using larger step-over tool paths. This allows for better part finishes with reduced cycle times.

Features
  • Multi-Flute “Tuffy” Grade, Bull Nose Style End Mills
  • Application Specific Geometries and Coatings
    Recommended for High Speed, Hard Metal, Milling Applications
  • For semi-finishing and finishing flat floors and straight walls
    		•
    HM-SERIES
    USAGE GUIDELINES
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    HM Tool Sizes - Inches

    Tool Number

    Diameter
    DØ

    Corner
    Radius

    Shank D
    dØ

    Flute
    Length

    OAL
    L1

    # of
    Flute

    HM-402-04

    1/8"

    0.015"

    1/4"

    3/8"

    3"

    4

    HM-402-06

    3/16"

    0.02"

    1/4"

    9/16"

    3"

    4

    HM-602-08

    1/4"

    0.02"

    1/4"

    5/8"

    3-1/2"

    6

    HM-602-10

    5/16"

    0.03"

    5/16"

    3/4”

    4"

    6

    HM-602-12

    3/8"

    0.03"

    3/8"

    1"

    4"

    6

    HM-602-14

    7/16"

    0.04"

    7/16"

    1-1/8”

    4"

    6

    HM-602-16

    1/2"

    0.04"

    1/2"

    1-1/4”

    4"

    6

    HM-602-20

    5/8"

    0.04"

    5/8"

    1-5/8”

    6"

    6

    HM-802-24

    3/4"

    0.06"

    3/4"

    1-3/4”

    6"

    8

    HM-102-32

    1"

    0.06"

    1"

    2"

    6"

    10

    HM Tool Sizes - Metric

    Tool Number

    Diameter
    DØ

    Corner
    Radius

    Shank D
    dØ

    Flute
    Length

    OAL
    L1

    # of
    Flute

    MHM-402-03

    3mm

    0.4mm

    6mm

    9mm

    76mm

    4

    MHM-402-04

    4mm

    0.5mm

    6mm

    12mm

    76mm

    4

    MHM-602-05

    5mm

    0.5mm

    6mm

    15mm

    90mm

    6

    MHM-602-06

    6mm

    0.5mm

    6mm

    15mm

    90mm

    6

    MHM-602-08

    8mm

    0.75mm

    8mm

    20mm

    100mm

    6

    MHM-602-10

    10mm

    0.75mm

    10mm

    25mm

    100mm

    6

    MHM-602-12

    12mm

    1mm

    12mm

    30mm

    100mm

    6

    MHM-602-16

    16mm

    1mm

    16mm

    40mm

    150mm

    6

    MHM-802-20

    20mm

    1.5mm

    20mm

    45mm

    150mm

    8

    MHM-102-25

    25mm

    1.5mm

    25mm

    50mm

    150mm

    10

    Tolerances

    HM Series – Inches

    Standard Tolerances

    DØ

    =

     -.001”/-.002"

    L1

    =

    +.060”/-.000"

    dØ

    =

    -.0001"/-.0002"

    L

    =

    +/-.060"

    Tolerances

    MHM Series – Metric

    Metric Tolerances

    DØ

    =

    0-0.025/-0.050mm

    L1

    =

    +0.50/+0.150mm

    dØ

    =

    -0.002/-0.005mm

    L

    =

    +/-1.000mm

    Get a Copy of Our Die Mold and Hard Metal Machining Brochure

    To download a copy in PDF format, click here.

    Brochure Revised 9-07

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