60o Combined Drills and Countersinks
Standard No: GB6078
Material: H.S.S
Metric System:mm
Index
- (A) Plain type (metric system)
- (A) Plain type (british system)
- (B) Bill type (metric system)
- (B) Bill type (british system)
(A) Plain type (metric system)
|
d
|
d1
|
L
|
l
|
1.0
|
3.15
|
31.5
|
1.9
|
1.25
|
3.15
|
35.5
|
2.8
|
1.6
|
4
|
35.5
|
2.8
|
2.0
|
5
|
40
|
3.3
|
2.5
|
6.3
|
45
|
4.1
|
3.15
|
8
|
50
|
4.9
|
4.0
|
10
|
56
|
6.2
|
5.0
|
12.5
|
63
|
7.5
|
6.3
|
16
|
71
|
9.2
|
8.0
|
20
|
80
|
11.5
|
10.0
|
25
|
100
|
14.2
|
(B) Bill type (metric system)
|
d
|
d1
|
d2
|
L
|
l
|
1.0
|
4
|
2.12
|
35.5
|
1.9
|
1.25
|
5
|
2.65
|
40
|
2.2
|
1.6
|
6.3
|
3.55
|
45
|
2.8
|
2.0
|
8
|
4.25
|
50
|
3.3
|
2.5
|
10
|
5.3
|
56
|
4.1
|
3.15
|
11.2
|
6.7
|
60
|
4.9
|
4.0
|
14
|
8.5
|
67
|
6.2
|
5.0
|
18
|
10.6
|
75
|
7.5
|
6.3
|
20
|
13.2
|
80
|
9.2
|
8.0
|
25
|
17
|
100
|
11.5
|
10.0
|
31.5
|
21.2
|
125
|
14.2
|
(A) Plain type (british system)
|
size designation |
d1 |
d |
i |
l |
inch |
mm |
inch |
mm |
inch |
mm |
inch |
mm |
00 |
1/8 |
3.18 |
0.025 |
0.64 |
0.030 |
0.76 |
1-1/8 |
29 |
0 |
1/8 |
3.18 |
1/32 |
0.79 |
0.038 |
0.79 |
1-1/8 |
29 |
1 |
1/8 |
3.18 |
3/64 |
1.19 |
3/64 |
1.19 |
1-1/4 |
32 |
2 |
3/16 |
4.76 |
5/64 |
1.98 |
5/64 |
1.98 |
1-7/8 |
48 |
3 |
1/4 |
6.35 |
7/64 |
2.78 |
7/64 |
2.78 |
2" |
51 |
4 |
5/16 |
7.94 |
1/8 |
3.18 |
1/8 |
3.18 |
2-1/8 |
54 |
5 |
7/16 |
11.11 |
3/16 |
4.76 |
3/16 |
4.76 |
2-3/4 |
70 |
6 |
1/2 |
12.70 |
7/32 |
5.56 |
7/32 |
5.56 |
3" |
76 |
7 |
5/8 |
15.88 |
1/4 |
6.35 |
1/4 |
6.35 |
3-1/4 |
83 |
8 |
3/4 |
19.05 |
5/16 |
7.94 |
5/16 |
7.94 |
3-1/2 |
89 |
(B) Bill type (british system)
|
size designation |
d1 |
d |
d2 |
i |
l |
inch |
mm |
inch |
mm |
inch |
mm |
inch |
mm |
inch |
mm |
11 |
1/8 |
3.18 |
3/64 |
1.19 |
0.10 |
2.5 |
3/64 |
1.19 |
1-1/4 |
32 |
12 |
3/16 |
4.76 |
1/16 |
1.59 |
0.15 |
3.8 |
1/16 |
1.59 |
1-7/8 |
48 |
13 |
1/4 |
6.35 |
3/32 |
2.38 |
0.20 |
5.1 |
3/32 |
2.38 |
2" |
51 |
14 |
5/16 |
7.94 |
7/64 |
2.78 |
0.25 |
6.4 |
7/64 |
2.78 |
2-1/8 |
54 |
15 |
7/16 |
11.11 |
5/32 |
3.97 |
0.35 |
8.1 |
5/32 |
3.97 |
2-3/4 |
70 |
16 |
1/2 |
12.70 |
3/16 |
4.76 |
0.40 |
10.2 |
3/16 |
4.76 |
3" |
76 |
17 |
5/8 |
15.88 |
7/32 |
5.56 |
0.50 |
12.7 |
7/32 |
5.56 |
3-1/4 |
83 |
18 |
3/4 |
19.05 |
1/4 |
6.35 |
0.60 |
15.2 |
1/4 |
6.35 |
3-1/2 |
89 |
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