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High-precision countersink, long, with 3 drive flats 90°, TiAlN, External ⌀ Dc: 12,4mm

Article no.: 150376 12,4

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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 ⌀ 12.4 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 Three clamping flats to h9
Through-coolant no
smallest countersink ⌀ for holes from 2.8 mm
Overall length L 108 mm
Shank ⌀ Ds 8 mm
for countersunk screws DIN 7991 M6
Feed f in steel < 500 N/mm2 0.13 mm/rev.
Shank tolerance h9
Colour ring green
Pre-drill ⌀ 2.8 mm
Type of product Stepped drill and countersink

Identification numbers & Classifications

Article number 150376 12,4
EAN / GTIN 4062406066017
Manufacturer number 150376 12,4

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.
Three drive flats on the shank for use in a 3-jaw chuck.

Application:

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

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