Solid carbide HPC deep-hole drill plain shank DIN 6535 HA 20×D TiAlN 2,7 mm GARANT

Article no.: 123690 2,7
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In stock
8 pieces in stock
  • Tool material: Solid carbide
  • Standard: Manufacturer’s standard
  • Version: 20×D
  • Tolerance nominal ⌀: h7
  • Number of cutting edges Z: 2

Product details

Technical Data

Nominal ⌀ DC 2,7 mm
Coating TiAlN
Tool material Solid carbide
Standard Manufacturer’s standard
Version 20×D
Tolerance nominal ⌀ h7
Number of cutting edges Z 2
Point angle 135 degrees
recommended maximum drilling depth L2 66 mm
Shank DIN 6535 HA to h6
Through-coolant yes, with 40 bar
Machining strategy HPC
Pilot drill required yes, pilot drill
Flute length Lc 70 mm
Overall length L 112 mm
Shank ⌀ Ds 4 mm
Feed f in steel < 900 N/mm2 0,06 mm/rev.
Colour ring green
Type of product Jobber drill

Identification numbers & Classifications

Article number 123690 2,7
EAN / GTIN 4045197320216

Application Table

Steel < 500 N/mm²
P
105
Steel < 750 N/mm²
P
90
Steel < 900 N/mm²
P
90
Steel < 1100 N/mm²
P
90
Steel < 1400 N/mm²
P
70
INOX < 900 N/mm²
M
50
INOX > 900 N/mm²
M
45
GG(G)
K
95
Uni
 
wet maximum
 

Description

Version:

Spiral fluted, with 4 guide chamfers and internal cooling channels. New generation of high performance deep hole drills in the HPC range.
With 135° point angle and special h7 cutting edge tolerance for optimum generation of a deep hole.
High roundness and alignment accuracy of the deep hole.

Note:

Flute length LC = L2 + 1.5 × DC.
For process reliability when using the 16×D deep hole drill, an initial centre drilling with No. 121068121121 or 4×D pilot drilling operation with pilot drill No. 122736 is necessary. For deep holes greater than 20×D, a pilot hole to the maximum drilling depth with pilot drill No. 122736 is absolutely essential. The generation of a pilot hole improves process reliability. See also pages 140/141.

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