STUB ARBOR
Taper contact area of more than 80% ensures reliable milling with no chattering accompanied.
30
L
G
H 1
W
φ C
φ D
H 2 (3,5,7,8,10,12)
SCA
Inch Series
Code No.( φ D-L) Metric Series
（●） figures for Metric Series
Code No.( φ D-L)
Weight(kg)
TAPER
H 1 17 23 29 32 17
C
W G
NBT30-SCA12.7 -60 -SCA15.875-60 -SCA22.225-60 -SCA25.4 -60 NBT40-SCA12.7 -75 -105 -SCA15.875-75 -105 -SCA22.225-75 -120 -SCA25.4 -75 (NIT40)
NBT30-SCA13-60 -SCA16-60 -SCA22-60 -SCA27-60 NBT40-SCA13-75 -105
20 26 34 40 20
M12 M14 M20 M24 M12
1.0 1.1 1.2 1.3 1.2 1.3 1.4 1.5 1.7 2.0 2.0 2.4 2.6 4.0 4.3 4.2 4.4 4.4 4.7 4.5 4.9 4.7 5.2 5.9̶ 4.9
3.18 ( 4 ) 3.18 ( 6 ) 6.35 ( 7 )̶
No.30
-SCA16-75
3.18 ( 4 )
23
26
M14
-105
No.40
-SCA22-75
3.18 ( 6 )
29
34
M20
-120
-SCA27-75
6.35 ( 7 )
32 41 17
40 46 20
M24 M30 M12
-120
-120
-SCA32-90
-SCA31.75 -90 NBT50-SCA12.7 -75
7.92 ( 8 )̶
NBT50-SCA13-75
-105
-105
(NIT50)
-SCA16-90
-SCA15.875-90
3.18 ( 4 )
23
26
M14
-120
-120
-SCA22-90
-SCA22.225-90
3.18 ( 6 )
29
34
M20
-135
-135
No.50
-SCA27-90
-SCA25.4 -90
6.35 ( 7 )
32
40
M24
-135
-135
-SCA32-90
-SCA31.75 -90
41
46
M30
7.92 ( 8 )
-135
-135
-SCA38.1 -90
-SCA40-90
46
55
M36
9.52 (10)
-135
-135
★ JIS B4206, JIS B4107, JIS B4219, JIS B4109 cutters can be attached. ★ Key and Collars （ H 2 =3, 5, 7, 8, 10, 12 ） are supplied as standard. P.118 ★ The Code No. of Nut is unified from “ GN ” to “ GNT ” .
203
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