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Solid carbide HPC drill plain shank DIN 6535 HA H7 7,98 mm

Article no.: 122790 7,98

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⌀ DC (mm) Unit price incl. VAT
  • Tolerance: H7
  • Tool material: Solid carbide
  • Standard: DIN 6537
  • Version: 6×D
  • Number of cutting edges Z: 2

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Product details

Technical Data

Nominal ⌀ DC 7.98 mm
Tolerance H7
Coating TiAlN
Tool material Solid carbide
Standard DIN 6537
Version 6×D
Number of cutting edges Z 2
Point angle 140 degrees
recommended maximum drilling depth L2 41.1 mm
Shank DIN 6535 HA to h6
Through-coolant yes, with 25 bar
Machining strategy HPC
Flute length Lc 53 mm
Overall length L 91 mm
Shank ⌀ Ds 8 mm
Shank tolerance h6
Feed f in steel < 900 N/mm2 0.22 mm/rev.
Colour ring green
Type of product Jobber drill

Identification numbers & Classifications

Article number 122790 7,98
EAN / GTIN 4045197059147
Manufacturer number 122790 7,98

Application Table

Steel < 500 N/mm²
P
120
Steel < 750 N/mm²
P
100
Steel < 900 N/mm²
P
85
Steel < 1100 N/mm²
P
60
INOX < 900 N/mm²
M
35
INOX > 900 N/mm²
M
30
Uni
 
wet maximum
 
Air
 

Description

Version:

Drilling and reaming in a single operation. Cutting chisel edge with high centring accuracy due to strong core and special point geometry. Particularly high alignment accuracy due to 4 guide chamfers.

Advantage:

Very tight manufacturing tolerances with H7 fit can be produced without additional reaming.

Note:

Form HB and HE supplied at the same price as HA.
Form HB: order with No. 122790 + 129100HB .
Form HE: order with No. 122790 + 129100HE.
Flute length LC = L2 + 1.5 × DC.
Solid carbide precision fit drills for machining aluminium available on request.

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