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

Material Type: High Carbon Alloy Steel - Wrought
Condition: Normalized, Cold Drawn or Quenched and Tempered
Grade: 52100
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
100
115
130
120
144
168
DIA./8
75
86
98
90
108
126
DIA./4
65
75
85
78
94
109
DIA./2
60
69
78
72
86
101

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
.0015
.0023
.0030
.0038
.0045
.0053
.0060
.0013
.0019
.0025
.0031
.0038
.0044
.0050
.0010
.0015
.0020
.0025
.0030
.0035
.0040
.0008
.0011
.0015
.0019
.0023
.0026
.0030




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
60
69
78
72
86
101
DIA./4
55
63
72
66
79
92
DIA./2
45
52
59
54
65
76
DIA./1
40
46
52
48
58
67

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.