Page 591 - Tungaloy Catalog

Designation System for TAC Milling Inserts

Symbol Hole Hole shape Chip groove Section shape
N Without *The thickness is a little
different according to the
R Without - On one side product.
F On both sides Symbol Cutting edge length (R) Symbol Thickness
W Partially cylindrical Without S 02 2.38
hole with 40˚ ~ 60˚
T mouth on one side On one side R 03 3.18
T3
3.97
Q Partially cylindrical Without T
hole with 40˚ ~ 60˚ 04 4.76
U With mouth on both On both sides R 05 5.56
sides
B Partially cylindrical Without R 06 6.35
hole with 70˚ ~ 90˚ R
H mouth on one side On one side 07 7.94
C Partially cylindrical Without H 09 9.52
hole with 70˚ ~ 90˚ R
J mouth on both On both sides Thickness
sides
X - - - A R
4 Insert type 5 Cutting edge length 6 Thickness (mm)

1 2 3 4 5
Example
9 Metric system S E E N 12

TAC Mills Example Inch system S D K N 4

1 2 3 4 5

1 Shape 2 Relief angle 3 Tolerance class (in)
Included Outlined
Tolerance on
Symbol Shape angle (degree) figure Symbol Relief angle Symbol Tolerance on Tolerance on inscribed circle
(degree)
corner height
H Hexagonal 120° C 7° A ± .0002 thickness ± .001
± .001
S Square 90° D 15° C ± .0005 ± .001 ± .001
T Triangular 60° E 20° E ±.0009 ± .001 ± .001
C 80° F 25° G ± .0009 ± .001 ± .001
E Rhombic 75° G 30° H ± .0005 ± .001 ± .0005
K
± .0005
G 70° M Others M ± .003 ~ ± .007 ± .001 ± .002 ~ ± .005
± .005
± .002 ~ ± .005
L Rectangular 90° N 0° N ± .008 ~ ± .007 ± .001 ± .002 ~ ± .005
A Parallelogram 85° P 11°
(ød)
R Round Q Other Inscribed Tolerance on inscribed circle Tolerance on corner height
(in)
W Trigon 80° O Other circle dia. J, K, L, M, N U (class) M, N (class) U (class)
(class)
W Special (wiper) — X Other .250 ±.002 ± .003 ± .003 ± .005
O Octagonal 135° S Other .375
P Pentagonal 108° W Double relief .500 ±.003 ± .005 ± .005 ± .0007
X Special Other angle .625 ± .0004 ± .007 ± .006 ± .011
Y Special Other angle .750
Z Special Other angle 1.000 ±.005 ± .010 ± .007 ± .005

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