Small Type Straight Shank Twist Drills

Standard No: GB6134
Material: H.S.S
Metric System: mm

Diameter
d
Overall Length
L
Flute Length
l
0.20
19
2.5
0.22
0.25
3
0.28
0.30
0.32
4
0.35
0.38
0.40
20
5
0.42
0.45
0.48
0.50
22
6
0.52
0.55
24
7
0.58
0.60
0.62
26
8
0.65
0.68
28
9
0.70
0.72
0.75
0.78
30
10
0.80
0.82
0.85
0.88
32
11
0.90
0.92
0.95
0.98
34
12
1.00
1.05
1.10
36
14
1.15
1.20
38
16
1.25
1.30
1.35
40
18
1.40
1.45
1.50
1.55
43
20
1.60
1.65
1.70
1.75
46
22
1.80
1.85
1.90
1.95
49
24

Note: Pilot land is not made when diameter is smaller than 0.75mm

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