Page 725 - Tungaloy Catalog

TAC countering mills
TCB 90° Steel Stainless Cast Iron

For counter milling of general steels, cast irons
Counter and stainless steels
Milling
Rake angle: A.R. Positive R.R. Negative
øD (Min.)

øD1 øDs h6

90° R 1 10 60
1.75×øD1
R s
L

No. of
Cat. No. Stock inserts Dimensions (mm) Applicable Applicable inserts Clamping screw Wrench
screw size
øD1 øDs øD R1 R s L
TCB-140 1 14 4.0 18 117 M8 SPMP831DS CSTB-2.2S T-7D
TCB-175 17.5 25 7.1 22 115 M10 CSTB-2.2
TCB-200 20 8.2 25 120 M12
TCB-230 23 11.0 29 126 M14 SPMP042ERD CSTA-NO3
TCB-260 26 33 80 132 M16 T-9D
TCB-290 2 29 14.0 30 138 M18 SPMM322ERD CSTA-NO5
TCB-320 32 32 16.9 - 144 M20
TCB-350 35 14.0 - 150 M22
TCB-390 39 17.9 - 158 M24 SPMM432ERD CSTA-4 T-15D
TCB-430 43 42 21.7 - 85 171 M27
TCB-480 48 26.7 - 181 M30

Inserts
9
r ε

11° TAC Mills
A s

Coated Dimensions (mm)
Cat. No. Accuracy Application
T313W A s rε
SPMP831DS d 6.35 2.38 0.4
SPMP042ERD d 7.938 Steel ·

SPMM322ERD M d 9.525 3.18 0.8 Cast irons
SPMM432ERD d 12.7 4.76
Note: No dimples on SPMP831DS.

Standard cutting conditions (for TCB-200)
Cutting speed Feed
Work materials Grade Cutting fluid
vc (m/min) f (mm/rev)
Carbon steels T313W 80 ~ 150 0.12 ~ 0.24 Water soluble type
Stainless steels, Mild steels T313W 150 ~ 200 0.05 ~ 0.12 Water soluble type
Cast irons T313W 70 ~ 130 0.20 ~ 0.40 Water soluble type or dry cutting
Notes : • For cutters under 20 mm diameter, be sure to use a cutting fluid and select lower
cutting speeds than shown above.
• For TCB-140 type, reduce the feeds to 1/2 of the values shown in the table.

d : Stocked items
: Stocked in Japan
Most unmarked items are available on a RFQ basis, contact your sales rep for more information.

Relating Technical Reference 9–139
pages (14-1)