PCBN
MICROBORING
MINI-B
R TYPE
F
r
L
226
POSITIVE EDGE
Ø D
PCBN
DIMENSIONS
DESCRIPTION
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
NB150U
ØD Ød r L F l
2.8
3
3.8
4
4.8
5
5.8
6
6.8
7 3
3
4
4
5
5
6
6
7
7 0.05
0.10
0.05
0.10
0.05
0.10
0.05
0.10
0.05
0.10 50
50
60
60
70
70
70
70
80
80 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
NB250U NB350 NB450U
L
d*
d*
d*
d*
d*
*NB150U = uncoated
Vc · fn · ap
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