HSK BALANCE-CUT BORING ARBOR （ RAC-K ）
Rough Boring － For Through Hole and Multi Sheets
L
20 °
M
φ C 1
φ C
φ D
Fig.1
h
h 2
L, M
20 °
L
φ C
20 °
M
φ C 1
φ C
1
φ D
φ C
φ D
RAC-K
Fig.2
Fig.3
h 2
h
h 1
h
h 2
（ Spacer ）
P.256
Boring Range D
Boring Depth M
Shank Code No.
Spacer Code No.
Weight (kg)
TAPER
Code No.
C C 1
Fig
Tip No.
Head Code No.
HSK 63A-Q12- 80 -Q12-110 -Q12- 80 -Q16- 95 -Q16-125 -Q16- 95 -Q20- 80 -Q20-110 -Q20- 80 -Q26- 95 -Q26-140 -Q26- 95 -Q34- 95 -Q34-110 -Q34- 95 -Q42- 95
HSK 63A-RAC25-135K -165K -180K -RAC32-150K
67 105 112 77 110 122 97 130 157 135 180 195 180 195 240 195
1.7 1.8 1.8 2.1 2.3 2.3 2.4 2.6 2.9 2.2 3.0 3.0 4.5 4.9 5.9 6.5
1
25 ～ 32
12-RAC 25- 55K
24
15
SP12-12-45̶
2
SC09
1
32 ～ 45
16-RAC 32- 55K
-180K -195K -RAC43-150K -180K -210K -RAC53-165K -210K -225K -RAC70-180K -195K -240K -RAC100-195K
30
19
SP16-16-45̶
2
1
HSK63A
43 ～ 55
20-RAC 43- 70K
40
SP20-20-60̶
2
50
1
53 ～ 70
26-RAC 53- 70K
53
SC12̶
SP26-26-60̶
2
70 ～ 100
34-RAC 70- 85K
64
52.4
3
SP34-34-60̶
100 ～ 130
42-RAC100-100K
83
★ “ C ” grade （ Coated ） inserts are supplied as standard with the head.
P.256 Please refer
P.106 for cutting condition.
★ Please refer P.67 for head. ★ For centre through coolant type, please add “ -C ” at the end of Code No. e.g. HSK63A-RAC53-165K-C ★ For HSK40A or 50A , modular connection system is applied. Please refer P.267 for Base Holder. ★ When L length is required longer than standard, please specify the boring depth M. ★ Lubrication Pipe is optional. Please refer P.298 P.267 for base holder, P.90 for spacer and
L
M
High Pressure Coolant Through Tool
255
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