Article no.: 150180 20,5

Countersink 90° 20,5 mm

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on request
In stock
1,833 pieces in stock
Brand: HOLEX
Countersink tip angle: 90 °
Tool material: HSS
Number of cutting edges Z: 3
Standard: DIN 335 C
Shank: Plain shank with h9

Information

  • Countersink tip angle: 90 °
  • Tool material: HSS
  • Number of cutting edges Z: 3
  • Standard: DIN 335 C
  • Shank: Plain shank with h9

Technical Data

External ⌀ 20.5 mm
Coating TiN
Countersink tip angle 90 °
Tool material HSS
Number of cutting edges Z 3
Standard DIN 335 C
Shank Plain shank with h9
Through-coolant no
smallest countersink ⌀ for holes from 3.5 mm
Overall length L 63 mm
Shank ⌀ Ds 10 mm
for countersunk screws DIN 7991 M10
Feed f in steel < 500 N/mm2 0.16 mm/U
Shank tolerance h9
Colour ring green
Type of product Stepped drill and countersink
Article number 150180 20,5
EAN / GTIN 4045197085986

Description

Version:

All countersinks have 3 cutting edges, radially relieved.
Flutes are ground from solid.
Economy version, improved performance due to coating.

Application:

High precision countersinks for chatter-free countersinking.

Application Table

Aluminium (short chipping)
N
38
Steel < 500 N/mm²
P
34
Steel < 750 N/mm²
P
32
Steel < 900 N/mm²
P
32
INOX < 900 N/mm²
M
9
CuZn
N
80
Uni
 
wet maximum
 
dry
 

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