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Application Guide Speeds & Feeds- Taps
FOR TAPPING BLIND HOLES
432
ISO
VDI
Material Group
Sutton
P
A
Steel
N
M
R
Stainless Steel
VA
K
F
Cast Iron
GG
N
N
Non-Ferrous Metals, Aluminiums & Coppers
AI
W
S
S
Titaniums & Super Alloys
Ti
Ni
H
H
Hard Materials( ≥ 45 HRC)
H
^ VDI 3323 material groups can also be determined by referring to the workpiece material cross reference listing. Refer to main index of this section.
UNI
Catalogue Code M T183 T185 T187 T189 T684 T231 T233 T235 T237 T241 T239 T197 T201 T203 T205 T207 T221 T227 T229 MF T243 T244 T245 T247 T248 T686 T703 T249 T251 T250 T252 T655 T254 UNC T255 T256 T258 T260 T273 T691 T261 T262 T695 T266 T267 UNF T274 T275 T701 T692 T276 T277 T696
2
G( BSPF)
T278 T279 T281 T282 T283 T699
T284 T285 T351 T352
Material
HSSE
HSSE
PM-HSSE
V3
HSSE
HSSE
HSSE
HSSE
PM-HSSE V3
PM-HSSE V3
Surface Finish
Brt
TiN
Brt
Blu
TiN Hardlube
Brt
CrN
Ni
Blu
TiN
CrN
Blu TiCN Blu
TiCN
Blu
TiAlN
Sutton Designation
N
N
UNI
Al
W
Cu
VADH
VA PM
NH
Geometry
R15
R40
R50 R45 2 Flute
R45
R45
R45
R50
IK
R40
IK
Thread Depth
≤ 1.5xØ
≤ 3xØ
≤ 3xØ
≤ 3xØ
≤ 3xØ
≤ 3xØ
≤ 3xØ
≤ 3xØ
≤ 2.5xØ
ISO VDI^
3323
Material
Condition
HB
N / mm
Vc( m / min)
1
Steel- Non-alloy,
~ 0.15 % C
A
125
440
10
14
10
11
14
17
-
-
14
11
14
-
11
14
13
17
21
-
-
-
2
cast & free cutting
~ 0.45 % C
A
190
640
10
14
10
11
14
17
-
-
14
11
14
-
11
14
13
17
21
-
-
-
3
QT
250
840
8
12
8
9
12
14
-
-
12
9
12
-
9
12
11
14
17
11
14
17
4
~ 0.75 % C
A
270
910
9
13
9
10
13
16
-
-
13
10
13
-
-
13
-
16
19
12
16
19
5
QT
300
1010
-
11
-
-
11
-
-
-
-
-
-
-
-
-
-
-
-
10
13
16
6
Steel- Low alloy & cast
A
180
610
10
14
10
11
14
17
-
-
14
11
14
-
11
14
13
17
21
-
-
-
P
7
< 5 % of alloying elements
QT
275
930
6
10
6
7
10
12
-
-
10
7
10
-
7
10
8
12
14
8
12
14
8
QT
300
1010
-
7
-
-
7
-
-
-
-
-
-
-
-
7
-
9
10
6
9
10
9
QT
350
1180
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4
5
10
Steel- High alloy, cast & tool
A
200
680
6
10
6
7
10
12
-
-
-
-
-
-
-
10
-
12
14
8
12
14
11
HT
325
1100
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
9
10
12
Steel- Corrosion
Ferritic / Martensitic
A
200
680
-
6
-
4
6
7
-
-
-
-
-
-
4
6
5
7
9
5
7
9
13
resistant & cast
Martensitic
QT
240
810
-
-
-
-
-
4
-
-
-
-
-
-
-
-
-
-
-
-
4
5
14.1
Stainless Steel
Austenitic
AH
180
610
-
7
-
5
7
9
-
-
-
-
-
-
5
7
6
9
10
6
9
10
M
14.2
Duplex
250
840
-
5
-
4
5
6
-
-
-
-
-
-
4
5
4
6
7
4
6
7
14.3
Precipitation Hardening
250
840
-
4
-
3
4
-
-
-
-
-
-
-
3
4
3
4
5
3
4
5
15
Cast Iron- Grey( GG)
Ferritic / Pearlitic
180
610
10
14
10
11
14
17
-
-
-
-
-
-
-
-
-
-
-
13
17
21
16
Pearlitic
260
880
-
12
-
-
12
14
-
-
-
-
-
-
-
-
-
-
-
11
14
17
K
17
18
Cast Iron- Nodular
( GGG)
Ferritic
Pearlitic
160
250
570
840
10
-
14
12
10
-
11
-
14
12
17
14
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
13
11
17
14
21
17
19
Cast Iron- Malleable
Ferritic
130
460
12
18
12
13
18
22
-
-
-
-
-
-
-
-
-
-
-
16
22
26
20
Pearlitic
230
780
10
14
10
11
14
17
-
-
-
-
-
-
-
-
-
-
-
13
17
21
21
Aluminum & Magnesium
Non Heat Treatable
60
210
10
14
10
-
14
17
10
14
14
-
14
14
-
14
-
17
21
-
17
21
22
- wrought alloy
Heat Treatable
AH
100
360
12
18
12
-
18
22
12
18
18
-
18
18
-
18
-
22
26
-
22
26
23
Aluminum & Magnesium
Non Heat Treatable
75
270
12
18
12
-
18
22
12
18
-
-
-
-
-
18
-
22
26
-
22
26
24
- cast alloy ≤12 % Si
Heat Treatable
AH
90
320
12
18
12
-
18
22
12
18
-
-
-
-
-
18
-
22
26
-
22
26
N
25
26
Al & Mg- cast alloy > 12 % Si
Non Heat Treatable
Copper & Cu alloys
Free cutting, Pb > 1 %
130
110
460
390
-
6
-
10
-
6
-
-
-
10
14
12
-
6
-
10
-
10
-
-
-
10
-
10
-
-
-
10
-
-
14
12
17
14
-
-
14
12
17
14
27
( Brass / Bronze)
Brass( CuZn, CuSnZn)
90
320
14
22
14
-
22
26
-
-
-
-
-
-
-
-
-
-
-
-
26
31
28
Bronze( CuSn)
100
360
-
-
-
-
-
-
11
17
17
-
17
17
-
17
-
20
24
-
20
24
29
Non-metallic- Thermosetting & fiber-reinforced plastics
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
30
Non-metallic- Hard rubber, wood etc.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
31
High temp. alloys
Fe based
A
200
680
-
-
-
-
-
-
-
-
-
-
-
-
-
4
-
4
5
-
-
-
32
AH
280
950
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
33
Ni / Co based
A
250
840
-
-
-
-
-
-
-
-
-
-
-
-
-
3
-
4
4
-
-
-
34
AH
350
1180
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
35
C
320
1080
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
S
36
Titanium & Ti alloys
CP Titanium
400 MPa
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
37.1
Alpha alloys
860 MPa
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
37.2
Alpha / Beta
A
960 MPa
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
37.3
alloys
AH
1170 MPa
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
37.4
Beta alloys
A
830 MPa
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
37.5
AH
1400 MPa
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
38.1
Hardened steel
HT
45 HRC
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
38.2
HT
55 HRC
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
H
39.1
39.2
HT
HT
58 HRC
62 HRC
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
40
Cast Iron
Chilled
C
400
1350
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
8
12
14
41
HT
55 HRC
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Condition: A( Annealed), AH( Age Hardened), C( Cast), HT( Hardened & Tempered), QT( Quenched & Tempered)
Bold = Optimal | Regular = Effective
Notes on Tapping
1. The speeds listed above are a recommendation only, and are based on depth of thread listed, speeds can be adjusted on application.
As a general rule;
-If hole depth required is less than above mentioned = increase speed
-If hole depth required is more than above mentioned = reduce speed
2. Taps must be driven by the square to eliminate slippage, eg, ER-GB collets( square drive).
3. When using spiral flute taps with length compensation tapping attachment, it is recommended to short pitch the feed 95 %,
to eliminate tap cutting oversize, eg. M6x1 @ 1000RPM, Feedrate = 950mm / min.
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