Microcut Carbide Micro End Mills
carbide end mills
 

Cutting Condition Chart # 5 - 4 Flute End Mills
Suggested Speeds and Feeds
Side Milling (Fractional)
Work
Material
Aluminum
Cast Iron
Medium
Carbon Steel
Mild Steel
Pre-hardened,
Stainless, Die
& Alloy Steels
Pre-hardened,
Stainless Die
& Alloy Steels
Hardened
Steels
Hardness
     
<HRC30
HRC30-40
HRC40-50
Depth
of Cut
side milling depth of cut   
Ad= 1.5D
Rd=0.1D
Mill
Diameter
(inch)
V=330-400 SFM
V=100-150 SFM
V=100-150 SFM
V=80-115 SFM
V=80-100 SFM
V=50 SFM
Speed
Feed
Speed
Feed
Speed
Feed
Speed
Feed
Speed
Feed
Speed
Feed
RPM
IPM
RPM
IPM
RPM
IPM
RPM
IPM
RPM
IPM
RPM
IPM
.030
40000
24.8
16000
6.9
14000
3.3
10000
2.0
10000
1.0
6000
0.6
3/64
31500
24.8
14000
9.6
11000
4.7
8000
3.3
8000
2.0
4800
0.8
1/16
21200
24.8
9500
9.6
7500
4.7
5300
3.3
5400
2.0
3200
0.8
5/64
16000
24.8
7100
13.8
5500
4.7
4000
3.3
4000
2.0
2400
0.8
1/8
12500
24.8
4750
16.5
4500
8.3
3550
6.7
3150
2.5
1600
1.4
5/32
9500
26.2
3550
16.5
3550
9.6
2650
6.7
2360
2.5
1200
1.4
3/16
7500
26.2
2800
16.5
2800
11.0
2120
6.7
1900
2.5
950
1.4
1/4
6300
26.2
2360
16.5
2360
11.0
1700
6.7
1600
2.5
800
1.4
5/16
4750
27.6
1800
16.5
1800
11.0
1320
6.7
1180
2.5
600
1.4
3/8
3750
27.6
1400
17.3
1400
12.2
1060
6.7
950
2.5
480
1.4
1/2
3150
30.7
1180
17.3
1180
12.2
850
6.7
800
2.5
400
1.4
5/8
2360
30.7
900
20.7
900
13.8
670
7.9
600
2.5
300
1.4
3/4
1900
30.7
710
20.7
710
13.8
530
8.3
475
2.5
240
1.4
1
1500
27.6
560
20.7
560
13.8
425
7.9
375
2.0
190
1.1
 Cutting Condition Chart # 4 - 2 & 3 Flute End Mills
Suggested Speeds and Feeds
Side Milling (Fractional)
Work
Material
Aluminum
Cast Iron
Medium
Carbon Steel
Mild Steel
Pre-hardened,
Stainless Die,
& Alloy Steels
Pre-hardened,
Stainless Die,
& Alloy Steels
Hardened
Steels
Hardness
     
<HRC30
HRC30-40
HRC40-50
Depth of
Cut
side milling depth of cut   
Ad= 1.5D
Rd=0.1D
Mill
Diameter
(inch)
V=330-400 SFM
V=100-150 SFM
V=100-150 SFM
V=80-115 SFM
V=80-100 SFM
V=50 SFM
Speed
Feed
Speed
Feed
Speed
Feed
Speed
Feed
Speed
Feed
Speed
Feed
RPM
IPM
RPM
IPM
RPM
IPM
RPM
IPM
RPM
IPM
RPM
IPM
.015
100000
15.7
31500
3.9
30000
2.0
25000
1.2
25000
0.6
16000
0.3
.020
62000
17.7
22400
4.9
22000
2.4
16000
1.4
16000
0.7
9500
0.4
.030
40000
17.7
16000
4.9
14000
2.4
10000
1.4
10000
0.7
6000
0.4
3/64
31500
17.7
14000
6.9
11000
3.3
8000
2.4
8000
1.4
4800
0.6
1/16
21200
17.7
9500
6.9
7500
3.3
5300
2.4
5400
1.4
3200
0.6
5/64
16000
17.7
7100
9.8
5500
3.3
4000
2.4
4000
1.4
2400
1.0
1/8
12500
17.7
4750
11.8
4500
5.9
3550
4.7
3150
1.8
1600
1.0
5/32
9500
18.7
3550
11.8
3550
6.9
2650
4.7
2360
1.8
1200
1.0
3/16
7500
18.7
2800
11.8
2800
7.9
2120
4.9
1900
1.8
950
1.0
1/4
6300
18.7
2360
11.8
2360
7.9
1700
4.9
1600
1.8
800
1.0
5/16
4750
19.7
1800
11.8
1800
7.9
1320
4.9
1180
1.8
600
1.0
3/8
3750
19.7
1400
12.4
1400
8.9
1060
4.9
950
1.8
480
1.0
1/2
3150
22.0
1180
12.4
1180
8.9
850
4.9
800
1.8
400
1.0
5/8
2360
22.0
900
14.8
900
9.8
670
5.5
600
1.8
300
1.0
3/4
1900
22.0
710
14.8
710
9.8
530
5.9
475
1.8
240
1.0
1
1500
19.7
560
14.8
560
9.8
425
5.5
375
1.4
190
0.8
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