Application Guide

redlinetools.com
800.791.7542
205
Endmills - Technical Info
Endmills
Tech Info -
• More Flutes in the cut means greater production. With an extra solid core get extra rigidity and
extended tool life.
• Use with High Efficiency Machining Technology for best results. See pages 208-212.
• These Extra High Performance tools can be found on pages 91-93.
9-Flute, Extra High Performance, Finisher Endmills, Corner
Radius & Chip Control, 36 Degree Helix
9-Flute Finishers Speeds & Feeds
Material Grades Cut Type
Axial
DOC
Radial
DOC
Feed by Endmill Diameter (IPT)
# of
Flutes SFM
1/4 3/8 1/2 5/8 3/4 1
(.2500) (.3750) (.5000) (.6250) (.7500) (1.000)
Low Carbon Steels <=
38 Rc
1018, 1020, 12L14, 5120,
8620
Peripheral -
HEM
<=3 x D .08 x D 9 485 .0038 .0056 .0075 .0094 .0113 .0150
>3xD-4xD .08 x D 9 485 .0034 .0051 .0068 .0084 .0101 .0135
>4xD-5xD .08 x D 9 465 .0030 .0045 .0060 .0075 .0090 .0120
Finish 3 x D .015 x D 9 420 .0014 .0021 .0028 .0035 .0042 .0056
Medium Carbon Steels <=
48 HRC
1045, 4140, 4340, 5140
Peripheral -
HEM
<=3 x D .08 x D 9 450 .0036 .0053 .0071 .0089 .0107 .0142
>3xD-4xD .08 x D 9 450 .0032 .0048 .0064 .0080 .0096 .0128
>4xD-5xD .08 x D 9 425 .0028 .0043 .0057 .0071 .0085 .0114
Finish 3 x D .015 x D 9 390 .0013 .0019 .0025 .0031 .0038 .0050
Tool and Die Steels <=
48 Rc
A2, D2, O1, S7, P20, H13
Peripheral -
HEM
<=3 x D .08 x D 9 420 .0032 .0048 .0064 .0080 .0096 .0128
>3xD-4xD .08 x D 9 420 .0029 .0043 .0058 .0072 .0086 .0115
>4xD-5xD .08 x D 9 395 .0026 .0038 .0051 .0064 .0077 .0102
Finish 3 x D .015 x D 9 365 .0011 .0016 .0021 .0026 .0032 .0042
M - Stainless Steels
Austenitic Stainless
Steels, FeNi Alloys
303, 304, 316, Invar, Kovar
Peripheral -
HEM
<=3 x D .08 x D 9 450 .0032 .0048 .0064 .0080 .0096 .0128
>3xD-4xD .08 x D 9 440 .0029 .0043 .0058 .0072 .0086 .0115
>4xD-5xD .07 x D 9 425 .0026 .0038 .0051 .0064 .0077 .0102
Finish 3 x D .015 x D 9 390 .0012 .0018 .0024 .0030 .0036 .0048
Martensitic & Ferritic
Stainless Steels
410, 416, 440
Peripheral -
HEM
<=3 x D .08 x D 9 450 .0038 .0056 .0075 .0094 .0113 .0150
>3xD-4xD .08 x D 9 450 .0034 .0051 .0068 .0084 .0101 .0135
>4xD-5xD .08 x D 9 425 .0030 .0045 .0060 .0075 .0090 .0120
Finish 3 x D .015 x D 9 390 .0013 .0019 .0025 .0031 .0038 .0050
Precipitation Hardening
Stainless Steels
17-4, 15-5, 13-8
Peripheral -
HEM
<=3 x D .08 x D 9 440 .0031 .0047 .0062 .0078 .0093 .0124
>3xD-4xD .08 x D 9 440 .0028 .0042 .0056 .0070 .0084 .0112
>4xD-5xD .07 x D 9 415 .0025 .0037 .0050 .0062 .0074 .0099
Finish 3 x D .015 x D 9 380 .0010 .0015 .0020 .0025 .0030 .0040
K - Cast Irons
Gray
ASTM-A48 Class 20, 25, 30,
35 & 40
Peripheral -
HEM
<=3 x D .1 x D 9 400 .0036 .0054 .0072 .0090 .0108 .0144
>3xD-4xD .08 x D 9 400 .0032 .0049 .0065 .0081 .0097 .0130
>4xD-5xD .08 x D 9 390 .0029 .0043 .0058 .0072 .0086 .0115
Finish 3 x D .015 x D 9 450 .0013 .0020 .0026 .0033 .0039 .0052
Cast Iron Malleable
Peripheral -
HEM
<=3 x D .08 x D 9 390 .0029 .0044 .0058 .0073 .0087 .0116
>3xD-4xD .08 x D 9 390 .0026 .0039 .0052 .0065 .0078 .0104
>4xD-5xD .08 x D 9 375 .0023 .0035 .0046 .0058 .0070 .0093
Finish 3 x D .015 x D 9 350 .0011 .0016 .0021 .0026 .0032 .0042
S - High Temp Alloys
Titanium Alloys 6Al-4V, 6-2-4
Peripheral -
HEM
<=3 x D .1 x D 9 405 .0021 .0031 .0041 .0051 .0062 .0082
>3xD-4xD .08 x D 9 405 .0018 .0028 .0037 .0046 .0055 .0074
>4xD-5xD .08 x D 9 390 .0016 .0025 .0033 .0041 .0049 .0066
F
inish 3 x D
.015 x D 9 350 .0008 .0012 .0016 .0020 .0024 .0032
Difficult to machine
titanium alloys
10-2-3
Peripheral -
HEM
<=2.5 x D .08 x D 9 335 .0020 .0030 .0040 .0050 .0060 .0080
>2.5xD-3.5xD .07 x D 9 325 .0018 .0027 .0036 .0045 .0054 .0072
>3.5xD-4xD .06 x D 9 305 .0016 .0024 .0032 .0040 .0048 .0064
Finish 3 x D .01 x D 9 290 .0007 .0011 .0014 .0018 .0021 .0028
Hastalloy, Waspalloy
Peripheral -
HEM
<=1.5 x D .08 x D 9 100 .0045 .0068 .0090 .0113 .0135 .0180
>1.5xD-2.5xD .08 x D 9 95 .0041 .0061 .0081 .0101 .0122 .0162
>2.5xD-3.5xD .06 x D 9 85 .0036 .0054 .0072 .0090 .0108 .0144
Finish 2 x D .01 x D 9 90 .0024 .0036 .0048 .0060 .0072 .0096
Inconel 718, Rene 88
Peripheral -
HEM
<=1.5 x D .07 x D 9 95 .0046 .0068 .0091 .0114 .0137 .0182
>1.5xD-2.5xD .06 x D 9 90 .0041 .0061 .0082 .0102 .0123 .0164
>2.5xD-3xD .06 x D 9 85 .0036 .0055 .0073 .0091 .0109 .0146
Finish 2 x D .01 x D 9 85 .0023 .0035 .0046 .0058 .0069 .0092
XHP
D = Tool Diameter
HEM = Hight Efficiency Machining