diamond
MINI-B
R TYPE
F
r
MICROBORING
Ø D
L
226
POSITIVE EDGE
PCD
DIMENSIONS
l
1.4
1.5
1.9
2.0
2.4
2.5
2.9
3.0
3.4
3.5 20
20
30
30
40
40
45
45
50
50
R
L
d
F 50
50
60
60
70
70
70
70
80
80
d
d
d
L 0.05
0.10
0.05
0.10
0.05
0.10
0.05
0.10
0.05
0.10
d
r 3
3
4
4
5
5
6
6
7
7 Ød 2.8
3
3.8
4
4.8
5
5.8
6
6.8
7
DRILLING
ØD
NT-MINI-B D3.0-L50-S2.8 R / L
D3.0-L50-S3.0 R / L
D4.0-L60-S3.8 R / L
D4.0-L60-S4.0 R / L
D5.0-L70-S4.8 R / L
D5.0-L70-S5.0 R / L
D6.0-L70-S5.8 R / L
D6.0-L70-S6.0 R / L
D7.0-L80-S6.8 R / L
D7.0-L80-S7.0 R / L
ND120
DESCRIPTION
Vc · fn · ap
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