R -
Round
|
S -
Square
|
T -
Triangle
|
P -
Pentagon
|
D -
Diamond 55°
|
C -
Diamond 80°
|
O -
Octagon
|
H -
Hexagon
|
L -
Rectangle
|
M-
Diamond 86°
|
A - Parallelo-
gram 85°
|
B - Parallelo-
gram 82°
|
E - Parallelo-
gram 55°
|
F - Parallelo-
gram 70°
|
V -
Diamond 35°
|
|
|
N - 0°
|
|
A - 3°
|
|
B - 5°
|
|
C - 7°
|
|
P - 11°
|
|
D - 15°
|
|
E - 20°
|
|
F - 25°
|
|
G - 30°
|
|
|
Cutting
|
Point
|
Thickness
|
|
A
|
± .0002
|
± .001
|
|
B
|
± .0002
|
± .005
|
|
C
|
± .0005
|
± .001
|
|
D
|
± .0005
|
± .005
|
|
E
|
± .001
|
± .001
|
|
G
|
± .001
|
± .005
|
|
**M
|
± .002 to
± 005
|
± .005
|
|
**U
|
± .005 to ±.021
|
± .005
|
**Exact tolerance to be
determined by size of insert.
|
A -
With hole
|
B -
With hole and one countersink
|
C -
With hole and two countersink
|
F -
Clamp-on type with chipbreaker
|
G -
With hole and
chipbreaker
|
H -
With hole, one countersink and
chipbreaker
|
J -
With hole, two countersink and
chipbreaker
|
|
Size 1/4" and over use
Number of
1/8ths in size
|
For Rectangular
and Parallelogram
use two digits;
number of 1/8ths
in width
and 1/4ths
in length
|
|
Size 1/4" and
over use -
Number of 1/16ths in thickness |
|
|
0
|
sharp corner
|
|
1
|
1/64 radius
|
|
2
|
1/32 radius
|
|
3
|
3/64 radius
|
|
4
|
1/16 radius
|
|
6
|
3/32 radius
|
|
8
|
1/8 radius
|
|
A
|
Square insert
with 45° chamfer
|
|
A -
Ground all over - light
honed
|
B-
Ground all
over - heavy honed
|
C -
Ground
top and bottom
only light honed
|
D -
Ground
top and bottom
onlyheavy honed
|
E - Unground
insert- honed
|
F - Unground
insert - not honed
|
T -
chamfer-
cutting edge
|
|
