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Countersinks Counterbore
- Solid pilot style
- 3 flute design
- Right-hand cutting
- Nominal size to suit metric socket head cap screws
- Cobalt High Speed Steel enables counterboring in high alloy steels
Catalogue Code
Discount Group
Material
Surface Finish
Sutton Designation
Geometry
Point Type
Shank Tolerance
d 3
Size Ref.
Size
0300
0400
0500
0600
0800
1000
1200
HSS Co
Brt
N
-
-
h6
d 3 d 1 l 1 l 2 d 2 Item #
3.2 6.0 71.0 14.0 5.0 4.3 8.0 71.0 14.0 5.0 5.3 10.0 80.0 18.0 8.0 6.4 11.0 80.0 18.0 8.0 8.4 15.0 100.0 22.0 12.5 10.5 18.0 100.0 22.0 12.5 13.0 20.0 100.0 22.0 12.5 C100 0300
C100 0400
C100 0500
C100 0600
C100 0800
C100 1000
C100 1200
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3.0
4.0
5.0
6.0
8.0
10.0
12.0
C100
B0709
P
130
Steel
4
5
6
7
M
8
K
N
M
Stainless Steel
K
Cast Iron
S
H
9 10 11 12 13 14.1 14.2 14.3 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37.1 37.2 37.3 37.4 37.5 38.1 38.2 39.1 39.2 40 41
N
Non-Ferrous Metals
S
Titanium & Super Alloys
H
Hard Materials
3
C100
P
2
1
ISO
VDI 3323
• Optimal • Effective