Solid carbide drill-reamer with pyramid tip DIN 6535 HA, TiAlN, ⌀ DC: 7,98mm

Article no.: 122797 7,98
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13 pieces in stock

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⌀ DC (mm) Unit price incl. VAT

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  • Tolerance: ±0.003
  • Tool material: Solid carbide
  • Standard: Manufacturer’s standard
  • Version: 5×D
  • Number of cutting edges Z: 2

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Product details

Technical Data

Nominal ⌀ DC 7,98 mm
Tolerance ±0.003
Coating TiAlN
Tool material Solid carbide
Standard Manufacturer’s standard
Version 5×D
Number of cutting edges Z 2
Point angle 140 degrees
recommended maximum drilling depth L2 41 mm
Shank DIN 6535 HA with h6
Through-coolant yes, with 25 bar
Semi-Standard yes
Flute length Lc 53 mm
Overall length L 91 mm
Shank ⌀ Ds 8 mm
Feed f in steel < 900 N/mm2 0,17 mm/rev.
Colour ring green
Type of product Jobber drill

Identification & Classification

Article number 122797 7,98
EAN / GTIN 4062406652319
Manufacturer number 122797 7,98
Manufacturer Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Deutschland, www.hoffmann-group.com

Application Table

Steel < 500 N/mm²
P
100
Steel < 750 N/mm²
P
90
Steel < 900 N/mm²
P
80
Steel < 1100 N/mm²
P
70
Steel < 1400 N/mm²
P
60
GG(G)
K
90
wet maximum
 
wet minimum
 
Air
 

Description

Version:

For producing toleranced holes in steel or short-chipping materials. Reliable complete machining without separate centring and without subsequent reaming process. Significantly improved self-centring due to additional pyramid tip for optimum roundness and tolerance accuracy of the hole that is produced. Two drill cutting edges and four reaming cutting edges for an attractive surface quality of the wall of the bore.
Tolerance specifications:
H7: Version for H7 bore tolerance.
+/− 0.003 mm: Manufacturing or cutting tolerance of nominal ⌀ DC.

Note:

Flute length LC = L2 + 1.5 × DC.
HB and HE shanks are available at the same price as HA.
For HB shanks: use order No. 122797 + 129100HB.
For HE shanks: use order No. 122797 + 129100HE.

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