Addison Centre Drills Type'A'

 

High Speed Steel

CENTRE DRILLS - Type 'A'

Specification conform
to IS 6708 - 1977

Dimensions in mm

center drills-type a

Pilot Dia k12

 Body Dia h9 Overall Length Pilot Length
Max. Min. Max. Min.
1
1.25
1.6
2.0
2.5		 3.15
3.15
4.0
5.0
6.3		 33.5
33.5
37.5
42.0
47		 29.5
29.5
33.5
38.0
43 		1.9
2.2
2.8
3.3
4.1		 1.3
1.6
2.0
2.5
3.1
3.15
4.0
5.0
6.3
8.0
10.0		 8.0
10.0
12.5
16.0
20.0
25.0		 52
59
66
74
83
103		 48
53
60
68
77
97		 4.9
6.2
7.5
9.2
11.5
14.2		 3.9
5.0
6.3
8.0
10.1
12.8

Drills

 Addison