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Cutting Tools
1
Continued
Hand tap set
Design:
HSS, DIN 2184, type N, bright surface.
3 piece set consisting of roughing tap with point form A (6–8 threads),
second tap with point form D (3.5–5 threads) and finish tap with point
form C (2–3 threads).
Application:
For UNC unit ANSI B1.1 coarse thread. Particularly
suitable for high strength materials up to 1200 N/mm
2
in strength and
rust-free and acid-resistant steels.
Order
No.
Steels
up to
850
N/mm
2
Steels
up to
1000
N/mm
2
Steels
up to
1400
N/mm
2
Steels
up to
42 HRC
Steels
up to
52 HRC
Steels
up to
56 HRC
Steels
up to
60 HRC
Hard
machining
over
60 HRC
Stainless
and acid-
resistant
steels (INOX)
Ti steels,
Ti alloys,
special
steels
Cast iron
materials
Al, Al and
Mg alloys
Copper,
brass,
bronze
1647
C
C
U
V
U
V
U
C
C
Hand tap set
Roughing tap
bright
Second tap
Finish tap
Order
No.
Thread
inch
1647
bright
Threads
per
inch
Thread ∅
mm
Total length
mm
Square shank
mm
Core hole ∅
mm
0001
UNC Nr. 1
36.90
64
1.854
36
2.1
1.50
0003
UNC Nr. 2
36.90
56
2.184
36
2.1
1.80
0005
UNC Nr. 3
31.10
48
2.515
40
2.1
2.10
0007
UNC Nr. 4
28.20
40
2.845
40
2.7
2.30
0009
UNC Nr. 5
27.90
40
3.175
45
3.0
2.60
0011
UNC Nr. 6
27.40
32
3.505
45
3.0
2.85
0013
UNC Nr. 8
28.20
32
4.166
45
4.9
3.50
0015
UNC Nr. 10
29.20
24
4.826
50
4.9
3.90
0017
UNC Nr. 12
31.40
24
5.486
56
4.9
4.50
0019
UNC 1/4
25.10
20
6.350
56
4.9
5.20
0021
UNC 5/16
33.30
18
7.938
63
4.9
6.60
0023
UNC 3/8
38.30
16
9.525
70
5.5
8.00
0025
UNC 7/16
45.00
14
11.113
70
6.2
9.40
0027
UNC 1/2
53.70
13
12.700
75
7.0
10.70
0029
UNC 9/16
75.90
12
14.288
80
9.0
12.20
0031
UNC 5/8
70.00
11
15.875
80
9.0
13.50
0033
UNC 3/4
101.00
10
19.050
95
12.0
16.50
0035
UNC 7/8
127.50
9
22.225
100
14.5
19.50
0037
UNC 1
163.50
8
25.400
110
16.0
22.20
(W160)
Order
No.
Thread
inch
1650
bright
Threads
per
inch
Thread ∅
mm
Total length
mm
Square shank
mm
Core hole ∅
mm
0021
UNF 1/4
20.80
28
6.350
56
4.9
5.50
0023
UNF 4/16
26.20
24
7.938
63
4.9
6.90
0025
UNF 3/8
28.20
24
9.525
63
5.5
8.50
0027
UNF 7/16
36.00
20
11.113
70
6.2
9.90
0029
UNF 1/2
39.00
20
12.700
70
9.0
11.50
0031
UNF 9/16
56.40
18
14.288
70
9.0
12.90
0033
UNF 5/8
52.40
18
15.875
70
9.0
14.50
0035
UNF 3/4
74.10
16
19.050
80
12.0
17.50
0037
UNF 7/8
88.60
14
22.225
80
14.5
20.40
0039
UNF 1
125.50
12
25.400
90
14.5
23.20
(W160)
UNC
HSS
DIN
2184
Type
N
60°
2–3
C
3,5–5
D
6–8
A
≤ 3xd
Thread cutting tools
187