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Drills
(Straight Shank Twist Drills)

Standard No: GB1436 (ISO, DIN)
Material: H.S.S
Metric System: mm

Diameter
d
Overall Length
L
Flute Length
l
2.0
49
24
2.05
2.1
2.15
53
27
2.2
2.25
2.30
2.35
2.4
57
30
2.45
2.5
2.55
2.6
2.65
2.7
61
33
2.75
2.8
2.85
2.9
3.0
3.1
65
36
3.2
3.3
3.4
70
39
3.5
3.6
3.7
3.8
75
43
3.9
4.0
4.1
4.2
4.3
80
47
4.4
4.5
4.6
4.7
4.8
86
47
4.9
5.0
5.1
5.2
5.3
5.4
93
57
5.5
5.6
5.7
5.8
5.9
6.0
6.1
101
63
6.2
6.3
6.4
6.5
6.6
6.7
6.8
109
69
6.9
7.0
7.1
7.2
7.3
7.4
7.5
7.6
117
75
7.7
7.8
7.9
8.0
8.1
8.2
8.3
8.4
8.5
8.6
125
81
8.7
8.8
8.9
9.0
9.1
9.2
9.3
9.4
9.5
9.6
133
87
9.7
9.8
9.9
10.0
10.1
10.2
10.3
10.4
10.5
10.6
10.7
142
94
10.8
10.9
11.0
11.1
11.2
11.3
11.4
11.5
11.6
11.7
11.8
11.9
151
101
12.0
12.1
12.2
12.3
12.4
12.5
12.6
12.7
12.8
12.9
13.0
13.5
160
108
13.6
13.7
13.8
13.9
14.0
14.5
169
114
15.0
15.5
178
120
16.0
16.5
184
125
17.0
17.5
191
130
18.0
18.5
198
135
19.0
19.5
205
140
20.0



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