Thread turning infeed recommendations, Whitworth (wh), external and internal, Bspt (pt), external and internal – Sandvik Coromant Threading User Manual
Page 100: Technical reference
100
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26
20
19
18
16
14
12
11
10
9
8
7
6
5
4.5
4
1
0.16
0.17
0.19
0.20
0.17
0.17
0.20
0.23
0.22
0.22
0.22
0.23
0.26
0.25
0.31
0.30
0.34
.006
.007
.007
.008
.007
.007
.008
.009
.009
.009
.009
.009
.010
.010
.012
.012
.013
2
0.15
0.16
0.18
0.18
0.16
0.16
0.19
0.22
0.21
0.21
0.21
0.22
0.26
0.25
0.30
0.29
0.33
.006
.006
.007
.007
.006
.006
.007
.009
.008
.008
.008
.009
.010
.010
.012
.012
.013
3
0.14
0.14
0.16
0.17
0.16
0.15
0.18
0.21
0.20
0.20
0.20
0.21
0.25
0.24
0.29
0.29
0.32
.005
.006
.006
.007
.006
.006
.007
.008
.008
.008
.008
.008
.010
.009
.012
.011
.013
4
0.12
0.13
0.15
0.15
0.15
0.15
0.17
0.20
0.19
0.19
0.20
0.21
0.24
0.23
0.28
0.28
0.31
.005
.005
.006
.006
.006
.006
.007
.008
.008
.008
.008
.008
.009
.009
.011
.011
.012
5
0.08
0.08
0.13
0.13
0.13
0.14
0.16
0.18
0.18
0.18
0.19
0.20
0.23
0.23
0.28
0.27
0.30
.003
.003
.005
.005
.005
.005
.006
.007
.007
.007
.007
.008
.009
.009
.011
.011
.012
6
0.08
0.08
0.12
0.13
0.14
0.16
0.17
0.17
0.18
0.19
0.22
0.22
0.27
0.26
0.29
.003
.003
.005
.005
.006
.006
.007
.007
.007
.007
.008
.009
.010
.010
.012
7
0.08
0.11
0.12
0.14
0.15
0.16
0.17
0.18
0.20
0.21
0.25
0.25
0.28
.003
.004
.005
.005
.006
.006
.007
.007
.008
.008
.010
.010
.011
8
0.08
0.08
0.08
0.13
0.15
0.16
0.17
0.19
0.20
0.24
0.25
0.27
.003
.003
.003
.005
.006
.006
.007
.008
.008
.010
.010
.011
9
0.08
0.13
0.14
0.16
0.18
0.19
0.23
0.24
0.26
.003
.005
.006
.006
.007
.008
.009
.009
.010
10
0.08
0.12
0.14
0.16
0.18
0.22
0.23
0.25
.003
.005
.006
.006
.007
.009
.009
.010
11
0.08
0.12
0.14
0.17
0.20
0.22
0.24
.003
.005
.005
.007
.008
.008
.009
12
0.08
0.08
0.16
0.18
0.20
0.22
.003
.003
.006
.007
.008
.009
13
0.14
0.16
0.19
0.21
.006
.006
.007
.008
14
0.10
0.10
0.17
0.19
.004
.004
.007
.007
15
0.15
0.16
.006
.006
16
0.10
0.10
.004
.004
0.64
0.68
0.88
0.92
0.97
1.08
1.23
1.42
1.54
1.70
1.87
2.10
2.39
2.78
3.32
3.69
4.06
.025
.027
.035
.036
.038
.043
.048
.056
.061
.067
.074
.083
.094
.109
.131
.145
.160
28
19
14
11
8
1
0.15
0.19
0.19
0.22
0.22
.006
.008
.007
.009
.009
2
0.14
0.18
0.18
0.21
0.21
.006
.007
.007
.008
.008
3
0.13
0.17
0.17
0.20
0.21
.005
.007
.007
.008
.008
4
0.12
0.15
0.16
0.19
0.20
.005
.006
.006
.007
.008
5
0.08
0.13
0.15
0.18
0.19
.003
.005
.006
.007
.008
6
0.08
0.14
0.16
0.18
.003
.005
.006
.007
7
0.12
0.15
0.17
.005
.006
.007
8
0.08
0.13
0.16
.003
.005
.006
9
0.08
0.15
.003
.006
10
0.14
.006
11
0.12
.005
12
0.08
.003
0.62
0.90
1.20
1.51
2.05
.024
.035
.047
.059
.081
CMC 02.1
MC P2.1.Z.AN
5. Technical reference
Extra stock is included in the total infeed 0.05 mm
.002 inch
Reference material
Thread turning infeed recommendations
Whitworth (WH), external and internal
Pitch, t.p.i.
No. of
infeeds
Unit
Radial infeed per pass
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
Total infeed
mm
inch
BSPT (PT), external and internal
Pitch, t.p.i.
No. of
infeeds
Unit
Radial infeed per pass
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
Total infeed
mm
inch