High-precision countersink, long 90°, uncoated, External ⌀ Dc: 12,4mm

Article no.: 150371 12,4
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External ⌀ Dc (mm) Unit price incl. VAT
  • Countersink tip angle: 90
  • Tool material: HSS
  • Number of cutting edges Z: 3
  • Standard: Manufacturer’s standard
  • Shank: Plain shank with h9

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Product details

Technical Data

External ⌀ 12.4 mm
Coating uncoated
Countersink tip angle 90 degrees
Tool material HSS
Number of cutting edges Z 3
Standard Manufacturer’s standard
Shank Plain shank with 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 0.12 mm/rev.
Shank tolerance h9
Colour ring without
Pre-drill ⌀ 2.8 mm
Type of product Stepped drill and countersink

Identification numbers & Classifications

Article number 150371 12,4
EAN / GTIN 4045197086129
Manufacturer number 150371 12,4

Application Table

Alu plastics
N
70
Aluminium (short chipping)
N
33
Alu > 10% Si
N
20
Steel < 500 N/mm²
P
28
Steel < 750 N/mm²
P
27
Steel < 900 N/mm²
P
27
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 DIN 335-C with long plain shank.

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Coating uncoated uncoated TiAlN uncoated TiN uncoated TiAlN TiAlN TiAlN TiAlN TiAlN TiAlN
Colour ring without without green without green without green green green green green green
for countersunk screws DIN 7991 M6 M6 M6 M6 M6 M6 M6 M6 M6 M6 M6 M6
Standard Manufacturer’s standard DIN 335 C DIN 335 C DIN 335 C DIN 335 C DIN 335 C DIN 335 C DIN 335 C Manufacturer’s standard Manufacturer’s standard DIN 335 C DIN 335 C
Shank Plain shank with h9 Plain shank with h9 Plain shank with h9 Plain shank with h9 Plain shank with h9 Shank with h9 and three drive flats Plain shank with h9 Shank with h9 and three drive flats Parallel shank to h9 Three clamping flats to h9 Three clamping flats to h9 Plain shank with h9
smallest countersink ⌀ for holes from 2.8 mm 2.8 mm 2.8 mm 2.8 mm 2.8 mm 2.8 mm 2.8 mm 2.8 mm 2.8 mm 2.8 mm 2.8 mm 2.8 mm
Feed f in steel < 500 N/mm2 0.12 mm/rev. 0.12 mm/rev. 0.12 mm/rev. 0.12 mm/rev. 0.12 mm/rev. 0.12 mm/rev. 0.13 mm/rev. 0.13 mm/rev. 0.13 mm/rev. 0.13 mm/rev. 0.12 mm/rev. 0.12 mm/rev.

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