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Cutting Tools
1
Tool material
e.g.
HSS
High-speed-
HSS
HSS
Co5
HS steel with 5%
Cobalt alloy content
Solid
carbide
Solid carbide
Standard
e.g.
DIN
208-B
Equiv. to DIN 208
Form B –
Spiral fluted
DIN
338
Equiv. to DIN 338
EN
22568
Complies with
the European
standard 22568
Type
e.g.
Type
N
Machining of materials
with normal
resistance and hardness
Type
W
Machining of materials with
low resistance and hardness
Type
H
Machining of materials
with high resistance and
hardness
Number of cutting
edges
e.g.
Z
4
Number of teeth 4
(4 cuts)
Thread
e.g.
M
Metric thread
60°
With edge angle 60°
2–3
C
Chamfer 2–3 threads,
Form C
Tolerance
e.g.
H7
Tolerance zone H7
ISO 2
6H
Metric ISO threads/FORUM
Usage class 2
Medium tolerance 6H
Shaft design
e.g.
DIN
1835-B
Cyl. shaft with
Carrier surface
acc. to DIN 1835 B
Cylinder shaft
Point angle
e.g.
90°
Countersink with
90° point angle
130°
Spiral drill 130° point angle
Spiral angle
e.g.
25–30°
Right spiral
with 25° to 30° angle
ca. 7°
Left spiral with
approx. 7° angle
Application
e.g.
For through
and blind holes
Feed direction
Dry machining possible
Pictogram Abstracts
All information regarding cutting speed and feed rate correspond to a recommended guideline.
This requires stable machine conditions, a low-vibration workpiece and the use of a suitable coolant.
Symbol mapping
Order
No.
Steels
up to
850
N/mm
2
Steels
up to
1000
N/mm
2
Steels
up to
1400
N/mm
2
Steels
up to
42 HRC
Steels
up to
52 HRC
Steels
up to
56 HRC
Steels
up to
60 HRC
Hard
processing
over
60 HRC
Rust and acid
resistant steels
(INOX)
Ti, Ti-alloy
and special
steels
Cast-iron
materials
Al, Al-
and Mg
alloy
Copper,
brass,
bronze
1040
C
C
C
C
C
U
C
V
C
C
recommended
U
suitable
V
limited suitability
Mapping of values
Cutting speed V
c
Order
No.
Steels
up to
850
N/mm
2
Steels
up to
1000
N/mm
2
Steels
up to
1400
N/mm
2
Steels
up to
42 HRC
Steels
up to
52 HRC
Steels
up to
56 HRC
Steels
up to
60 HRC
Hard
processing
over
60 HRC
Rust and acid
resistant steels
(INOX)
Ti, Ti-alloy.
and special
steels
Cast-iron
materials
Al, Al-
and Mg
alloy
Copper,
brass,
bronze
1040
35
35
25
25
19
30
30
50
35
Font bold = recommended
Font normal = suitable
Order
No.
∅ h8
mm
etc.
Example calculation (Spiral drill ∅ 4.0 mm, mild steel up to 850 N / mm
2
)
etc.
6WHHOV
XSWR
1PP
f
mm/rev
Value sought 1:
n =
number of revolutions per minute (r/min)
Formula:
n =
V
c
x 1000
__________
D x ∏
Calculation:
n =
35 m/min x 1000
__________________
4.0 mm x 3,14159
Solution:
n =
2785/min
0101
1.0
0,090
0102
2.0
0,095
0103
3.0
0,100
0104
4.0
Value sought 2:
v
f
=
feed rate (mm/min)
0,105
0105
5.0
Formula:
v
f
=
n x f
0,110
0106
6.0
Calculation:
v
f
=
2785/min x 0.105 mm/U
0,115
etc.
etc.
Solution:
v
f
=
292 mm/min
etc.
Cutting speed and feed rate
Pictograms and Cutting Data
20