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Speed & Feed Data for High Speed End Mills
Starting Point Speed & Feed Ranges

Material Type: Austenitic Stainless Steel - Wrought
Condition: Cold Drawn
Grade: 304
Brinell: 225-275

 

Peripheral Machining

Axial Depth (A.D.) = Dia. X 1.5 Max.

Radial
Depth
(R.D.)
Ratio
Surface Feet per Minute (S.F.P.M.)
Finishing End Mill
Roughing End Mill
STD.
TiN.
TiCN.
STD.
TiN.
TiCN.
DIA./16
95
109
124
114
137
160
DIA./8
70
81
91
84
101
118
DIA./4
60
69
78
72
86
101
DIA./2
50
58
65
60
72
84

Feed per Tooth (F.P.T.) by Diameter
Note: Increase F.P.T. by 25% to 35% for 60 Degree end mills
Note: Increase F.P.T. by 25% for TiCN coating.
1/4"
3/8"
1/2"
5/8"
3/4"
7/8"
1." & Up
.0018
.0026
.0035
.0044
.0053
.0061
.0070
.0015
.0023
.0030
.0038
.0045
.0053
.0060
.0013
.0019
.0025
.0031
.0038
.0044
.0050
.0010
.0015
.0020
.0025
.0030
.0035
.0040




Slot Machining

Radial Depth (R.D.) = Tool Dia.

Axial
Depth
(A.D.)
Ratio
Surface Feet per Minute (S.F.P.M.)
Finishing End Mill
Roughing End Mill
STD.
TiN.
TiCN.
STD.
TiN.
TiCN.
DIA./8
50
58
65
60
72
84
DIA./4
45
52
59
54
65
76
DIA./2
40
46
52
48
58
67
DIA./1
35
40
46
42
50
59

Feed per Tooth (F.P.T.) by Diameter
Note: Increase F.P.T. by 25% to 35% for 60 Degree end mills
Note: Increase F.P.T. by 25% for TiCN coating.
1/4"
3/8"
1/2"
5/8"
3/4"
7/8"
1." & Up
.0013
.0019
.0025
.0031
.0038
.0044
.0050
.0011
.0015
.0020
.0025
.0030
.0035
.0040
.0008
.0011
.0015
.0019
.0023
.0026
.0030
.0005
.0008
.0010
.0013
.0015
.0018
.0020

 

   NC Niagara Cutter, Inc
. • 200 John James Audubon Pkwy • Amherst, NY 14228 USA
    Phone: 716-689-8400 • Fax: 716-689-8485 • E-mail:
NiaCut@NiagaraCutter.com     © 2008 Niagara Cutter, Inc.