CHAMFER MILLS
CENTER BOY Accurate Positioning of Drill Holes and Chamfering Can be Performed Simultaneously
Locking Screw
L
Fig. 1—Standard Type
L
L 1
Locking Screw
Fig. 2—Long Type
Chamfer Dia.
Point Angle
Catalog Number
Insert Model
Spare Locking Screw
Fig.
ØD 1
L
L 1
ØCmin
ØCmax
ST10-CBY09010 ST12-CBY09013 ST16-CBY09016 ST20-CBY09022
1 1 1 1
.035 .035 .039 .059
.394 .512 .630 .866
10mm (.394) 12mm (.472) 16mm (.630) 20mm (.787)
5.906 5.906 7.087 7.087 8.661
CBY09010-5P CBY09013-5P CBY09016-5P CBY09022-5P
H0403-5P H0504-5P H0504-5P H0505-5P
—
90º
ST20-CBY09013-220 ST20-CBY09013-260 ST32-CBY09022-260 ST32-CBY09022-300
2
.035
.512
20mm (.787)
4.724
CBY09013-5P
H0403-5P
10.236 10.236 11.811
2
.059
.866
32mm (1.260)
4.724
CBY09022-5P
H0505-5P
ST12-CBY12013
120º
1
.035
.512
12mm (.472)
5.906
— CBY12013-5P
H0403-5P
Hand feeding is not recommended. ! CAUTION
• Wrench and screws are included; inserts must be ordered separately
CENTER BOY THROWAWAY BIT Precision-Finished Cutting Edge with Superb Sharpness Since the bit can be replaced, there is no need for regrinding and the performance remains stable at all times.
Point Angle
Catalog Number
Body Model
CBY09010-5P CBY09013-5P CBY09016-5P CBY09022-5P CBY12013-5P
ST10-CBY09010
ST12-CBY09013/ST20-CBY09013
90º
ST16-CBY09016
ST20-CBY09022/ST32-CBY09022
120º
ST12-CBY12013
• Bits are available in 5 pcs. • High-speed steel/TiN coating (Bit material)
CENTER BOY CUTTING DATA Vc: Cutting speed (SFM), f = Feed per revolution (in/rev)
Chamfering
Centering Cast Iron
Catalog Number
Steel
Cast Iron
Aluminum
Steel
Aluminum
Vc 65
f
Vc 65
f
Vc
f
Vc 80
f
Vc
f
Vc
f
150
100
165
CBY09010... CBY09013... CBY12013... CBY09016... CBY09022...
80
80
165
100
115
180
.004
.005
.006
.003
.004
.006
100 115
115 130
180 200
150 165
130 150
200 215
• The values in this table are only for reference and should be adjusted based on workpiece hardness, rigidity, and chamfering amount • Lower the cutting speed Vc if chatter occurs • Keep the projection length as short as possible
619
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