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10.
COMBINED DRILLS & COUNTER SINKS |
|
(A) PLAIN TYPE |
|
Art No For
|
Size |
Body
Dia.
|
Drill Dia.
|
Overall
Length
|
Description | ||
|
60° |
82° |
90° |
Inch | Inch | Inch | ||
| 1961 |
- |
- |
00 |
1/8 |
.025 |
1-1/8 |
|
| 1962 |
- |
- |
0 |
1/8 |
1/32 |
1-1/8 |
|
| 1963 | 1974 | 1982 |
1 |
1/8 |
3/64 |
1-1/4 |
|
| 1964 | 1975 | 1983 |
2 |
3/16 |
5/64 |
1-7/8 |
|
| 1965 | 1976 | 1984 |
3 |
1/4 |
7/64 |
2 |
|
| 1966 | 1977 | 1985 |
4 |
5/16 |
1/8 |
2-1/8 |
|
| 1967 | - | - |
4-1/2 |
3/8 |
9/64 |
2-1/2 |
|
| 1968 | 1978 | 1986 |
5 |
7/16 |
3/16 |
2-3/4 |
|
| 1969 | 1979 | 1987 |
6 |
1/2 |
7/32 |
3 |
|
| 1970 | 1980 | 1988 |
7 |
5/8 |
1/4 |
3-1/4 |
|
| 1971 | 1981 | 1989 |
8 |
3/4 |
5/16 |
3-1/2 |
|
| 1972 |
- |
- |
9 |
7/8 |
11/32 |
3-5/8 |
|
| 1973 |
- |
- |
10 |
1 |
3/8 |
3-3/4 |
|

(B) BELL TYPE 60°
|
Art No. |
Size |
Body Dia. |
Drill Dia. |
Bell Dia. |
Overall Length |
| 1990 |
11 |
1/8 |
3/64 |
.100 |
1-1/4 |
| 1991 |
12 |
3/16 |
1/16 |
.150 |
1-7/8 |
| 1992 |
13 |
1/4 |
3/32 |
.200 |
2 |
| 1993 |
14 |
5/16 |
7/64 |
.250 |
2-1/8 |
| 1994 |
15 |
7/16 |
5/32 |
.350 |
2-3/4 |
| 1995 |
16 |
1/2 |
3/16 |
.400 |
3 |
| 1996 |
17 |
5/8 |
7/32 |
.500 |
3-1/4 |
| 1997 |
18 |
3/4 |
1/4 |
.600 |
3-1/2 |
SET OF BELL TYPE
|
Art No.. |
Range |
No. of Pcs. |
|
1997-A |
# 11 TO # 15 |
5 |
|
|
|