520 / 1618
2/266
Cutting Tools
2
Ç
2/195, 2/203, 2/208,
2/214, 2/229, 2/240
Ç
2/197, 2/209, 2/210,
2/221, 2/239, 2/250
FORMAT indexing inserts
We place special value on the
quality of our products. As such,
price and performance enjoy an
outstanding cost-benefit ratio.
Name and formulas
RPM
n =
Vc • 1000
(min
-1
)
π • D
c
D = workpiece diameter
(mm)
D
2
= edge diameter (nominal diameter)
(mm)
n = speed
(min
-1
)
P = pitch
(mm)
P
h
= gradient
(mm)
V
f
= path speed
(m/min)
TPI = turn per inch
Vc = cutting speed
(m/min)
λ
= inclination angle
(°)
Cutting speed
c =
π • D • n
(m/min)
1000
Path speed
V
f
=
n • P
h
(m/min)
1000
Gradient
P
h
= P • Anzahl der Gänge (min)
Tilt angle
λ
= arctan P
h
(°)
D
2
• π
Conversion inches to metric
TPI = 25,4
P
Thread cutting - cutting data
Cutting data
520