TURNING TURNING

INSERT DESIGNATION (BASED ON ISO 1832)


W 1
N 2
2
M 3
3
G 4
4
08 04 08
5 66 77 88 99
NN
10

1. Insert Shape 2. Clearance Angle 5. Cutting Edge Length 6. Insert Thickness 7. Insert Corner Radius
80°
85° 82° 55°
Symbol mm
α° A, B, K C, D, E, M, V H, O, P
A B C D Letter Symbol α
01 = 1.59
A 3°
T1 = 1.98


S
55° B 5°
L L L R
G H K L
C 7° 02 = 2.38
00 = Sharp corner
D 15° L R S 03 = 3.18 or round insert
(inch version)
E 20°
86°
T3 = 3.97 M0 = Round insert


S
F 25° (metric version)
M O P R
G 30° L L L
04 = 4.76 01 = 0.1 mm
02 = 0.2 mm
N 0° T W 05 = 5.56 04 = 0.4 mm
35°
11° 06 = 6.35
80°
P 08 = 0.8 mm


S
S
S T V W O Special 12 = 1.2 mm
07 = 7.94 16 = 1.6 mm
L L etc
09 = 9.52
Disregarding any decimals e.g. 12,7 = 12
3. Tolerance Class 4. Fixing and Chipbreaker Types
d (mm)
D M S Type Symbol Type Symbol
8. Edge Preparation 9. Cutting Direction 10. Internal Designation
m (mm) Symbol
s (mm)
A ± 0.025 ± 0.005 ± 0.025
A N Turning
m C ± 0.025 ± 0.013 ± 0.025 e.g. Chipbreaker (Turning)
F
E ± 0.025 ± 0.025 ± 0.025 70°- 90° NN = General purpose
B P R
Ø


NM = Roughing operations
d


F ± 0.013 ± 0.005 ± 0.025
m
G ± 0.025 ± 0.025 ± 0.130 E NX = General purpose Magia
F R
Ød H ± 0.013 ± 0.013 ± 0.025 PP = All purpose grooving
L NS = Non-ferrous materials
m J* ± 0.05-0.15 ± 0.005 ± 0.025 40°- 60°
T
G T
K* ± 0.013 ± 0.025 MP = Steel materials
± 0.05-0.15
40°- 60°
L* ± 0.05-0.15 ± 0.025 ± 0.025 70°- 90°
Ød H W S Optional information
N
M* ± 0.05-0.15 ± 0.08-0.20 ± 0.130
N* ± 0.05-0.15 ± 0.08-0.20 ± 0.025 Optional information
M X Special Design Optional information
s U* ± 0.08-0.25 ± 0.13-0.38 ± 0.130
* Depending on the insert size.


10 11