ISO identificationISO identification

ISO identification

Symbol Shape

W No chipbreaker, with hole T Single-sided chipbreaker, with hole Symbol Shape F

HHexagonDouble-sided
OOctagonchipbreakers, without holeSymbolShape

P Pentagon

SSquareSymbolTolerance (mm)
TTriangle(Class)Corner HeightThicknessI.C. SizeNF

No chipbreaker,

C80˚ RhombicA±0.025without holeSharp edge
D55˚ Rhombic±0.005

F ±0.013

E75˚ RhombicC±0.025±0.025
F50˚ Rhombic±0.013

Symbol Relief angle H ±0.013 R E

M 86˚ Rhombic E Single-sided chipbreaker,

A 3° ±0.025 ±0.025 without hole R-honed

V 35˚ Rhombic G ±0.13

B

W Trigon C J ±0.005

L Rectangle K* ±0.013 ±0.025

D 15° M T

A 85˚ Parallelogram E L* ±0.025 ±0.05~±0.15 Single-sided chipbreaker,

20°

B 82˚ Parallelogram M* ±0.13 with hole Chamfered

F 25° ±0.08~±0.18

K 55˚ Parallelogram G N* ±0.025

30°

R Round U* ±0.13~±0.38 ±0.13 ±0.08~±0.25

NA S

Shown angle stands for Insert's periphery is as fired.

acute angle for rhombic andP11°
parallelogram inserts.OOther angles* Tolerance difference is depending on insert size.No chipbreaker, with holeChamfered + R-honed
ShapeRelief angleToleranceChipbreaker / HoleEdge preparation

S E K N 12 03 A F T N -

M

Edge length Tickness Cutting edge angle Relief angle Hand of tool Manufacturer’s option

SymbolThickness (mm)SymbolCutting edge angleSymbolRelief angleSymbolChipbreaker, etc. Hand of tool
022.38A45°ARRight-hand
033.18D60°BLLeft-hand
T33.97E75°CNNeutral
044.76F85°D15°
055.56H87°E20°
066.35P90°F25°
X65°G30°

NP 11° R 10° S 14° T 22° U 23°

In case of indicating corner-R(RE) Corner-R (RE) (mm) 04 0.4 08 0.8 12 1.2 16 1.6