519 / 1618
2/265
Cutting Tools
2
Example:
Cutting edge length = 16.5 mm
Symbol = 16
Inclination angle
κκ
0 = inclination angle
λ
0°
1 = inclination angle
λ
1°
Cut direction option depends on:
• Workpiece (outer or inner thread, right or left thread)
• Machine (right or left tool)
Right thread - right tool
Left thread - left tool
ER
First option
IR
EL
First option
IL
S
1
E
2
R
3
25
4
25
5
M
6
16
7
8
Left thread - right tool
Right thread - left tool
ER
IR
First option
EL
IL
First option
S
Screw
25 = 25 mm
32 = 32 mm
L
R
E = outer
I = inner
H = 100 mm
K = 125 mm
L = 140 mm
M = 150 mm
P = 170 mm
Q = 180 mm
R = 200 mm
S = 250 mm
T = 300 mm
U = 350 mm
V = 400 mm
12 = 12 mm
20 = 20 mm
25 = 25 mm
7. Cutting edge length
8. Additional Information
Cutting direction to the headstock
3. Cut direction
Cutting direction towards tailstock
1. Clamp system
2. Outer/inner
4. Shank height
6. Tool length
5. Shank width/diameter
Machining methods
ISO Description – Threading Toolholders
519