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High-precision countersink, long 90°, TiAlN, External ⌀ Dc: 25mm

Article no.: 150377 25

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External ⌀ Dc (mm) Unit price incl. VAT
  • Countersink tip angle: 90
  • Tool material: HSS
  • Spacing of the countersink cutting edges: unequal spacing
  • Number of cutting edges Z: 3
  • Standard: Manufacturer’s standard

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Product details

Technical Data

External ⌀ 25 mm
Coating TiAlN
Countersink tip angle 90 degrees
Tool material HSS
Spacing of the countersink cutting edges unequal spacing
Number of cutting edges Z 3
Standard Manufacturer’s standard
Shank Parallel shank to h9
Through-coolant no
smallest countersink ⌀ for holes from 3.8 mm
Overall length L 118 mm
Shank ⌀ Ds 10 mm
for countersunk screws DIN 7991 M12
Feed f in steel < 500 N/mm2 0.25 mm/rev.
Shank tolerance h9
Colour ring green
Pre-drill ⌀ 3.8 mm
Type of product Stepped drill and countersink

Identification numbers & Classifications

Article number 150377 25
EAN / GTIN 4045197868039
Manufacturer number 150377 25

Application Table

Alu plastics
N
75
Aluminium (short chipping)
N
75
Alu > 10% Si
N
50
Steel < 500 N/mm²
P
65
Steel < 750 N/mm²
P
50
Steel < 900 N/mm²
P
30
Steel < 1100 N/mm²
P
18
Steel < 1400 N/mm²
P
8
Steel < 55 HRC
H
8
INOX < 900 N/mm²
M
16
INOX > 900 N/mm²
M
10
Ti > 850 N/mm²
S
12
GG(G)
K
25
CuZn
N
60
Graphite, GRP, CRP
N
Uni
 
wet maximum
 
dry
 

Description

Version:

All countersinks have 3 cutting edges, radially relief ground. Flutes ground from solid.
High-precision countersink, produced to tight manufacturing tolerances similar to DIN335-C, with long plain shank.
Special geometry with extremely unequal spacing and matching cutting edge preparation.
Newly developed, special TiAlN coating for long tool life.

Application:

High-precision countersinks for chatter-free production of precise, round 90° countersunk surfaces.

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