Carbide Insert Designation Charts



Carbide Insert Designation Chart

Click the code letter or their description links in the example charts below for definitions of values:

Turning

C N M G 4 3 2
Shape Clearance Angle Tolerance Groove / Hole Size (IC) Thickness Radius

Milling

S E K N 4 2   A F T N
Shape Clearance Angle Tolerance Groove / Hole Size (IC) Thickness Radius Wiper Lead Angle Wiper Clearance Angle Cutting Edge Preparation Cutting Direction

 

 


Shape    
 (e.g. "CNMG432" / "CCMT32.51")
           (close window)

Code Letter Description Diagram Nose Angle
A

85° parallelogram

  85°
B

82° parallelogram

  82°
C

80° diamond

80°
D

55° diamond

55°
E

75° diamond

75°
H

hexagon

  120°
K

55° parallelogram

55°
L

rectangle

  90°
M

86° diamond

86°
N

55° parallelogram

55°
O

octagon

135°
P

pentagon

108°
R

round

full radius
S

square

90°
T

triangle

60°
V

35° diamond

35°
W

trigon

80°
X

sp. parallelogram

85°


Choosing Insert Shape


Grade Range Chart



P
Steel

01

C8

Precision finishing


increasing wear resistance  

 

increasing shock resistance

10

C7

Light finishing

20

C6

Semi-finishing

30

40

C5

Roughing & general purpose

50

M
Stainless
Steel

10

-

Precision finishing


increasing wear resistance  

 

increasing shock resistance

20

-

Semi-finishing

30

-

General purpose

40

-

Roughing

K
Cast
Iron

01


C4

Precision finishing


increasing wear resistance  

 

increasing shock resistance

10

C3

Semi-finishing

20

C2

General purpose

30

C1

Roughing

N
Non-
ferrous

01

-

Precision finishing


increasing wear resistance  

 

increasing shock resistance

10

-

Semi-finishing

20

-

General purpose

30

-

Roughing

S
Hi-temp
Alloys

10

-

Precision finishing


increasing wear resistance  

 

increasing shock resistance

20

-

Semi-finishing

30

-

General purpose

40

-

Roughing

H
Hardened
Materials

01

-

Precision finishing


increasing wear resistance  

 

increasing shock resistance

10

-

Semi-finishing

20

-

General purpose

30

-

Roughing

 Click here for a Full Printable copy of Carbide Grade Range Chart

 

 

 


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