y ISO CODES FOR MILLING

Symbol Relief Angle AN

SymbolInsert ShapeC7°
SSquareD15°
TTriangularE20°
CRhombic 80°F25°

N Regular Heptagon G 30° O Octagonal N 0°

M Rhombic 86° P 11° A Parallelogram 85° O Other R Round

XSpecial DesignXOther
WWiperMajor Relief Angle

z Insert Shape x Relief Angle

INCH

METRIC

IC M cTS olerance CIC lassM
I ClassCMS
A .500e.001e.0002e.001
C .250 .375e.001e.0005e.001
.500 .625 Ee.001e.001e.001
H .394 .492e.0005e.0005e.001
G .551e.001e.001e.005
.250e.002e.0005e.001
K .375e.002e.0005e.001
.500e.003e.0005e.001
.625e.003e.0005e.001
.250e.002e.003e.001
N .375e.002e.003e.001
.500e.003e.006e.001
.625e.004e.006e.001
.250e.002e.003e.005
M .375e.002e.003e.005
.500e.003e.005e.005
.625e.004e.006e.005

Symbol Hole Configuration breakers Figure

W Cylindrical

Countersink sided Cylindrical

Hole – No

Hole