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Jobber drill, extra long HSS-E FS, uncoated, ⌀ DC h8 × overall length L: 8,5X240mm

Article no.: 116250 8,5X240

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⌀ DC h8 × overall length L (mm) Unit price incl. VAT
  • Tool material: HSS E
  • Standard: DIN 1869
  • Type: FS
  • Tolerance nominal ⌀: h8
  • Point angle: 130

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Product details

Technical Data

Nominal ⌀ DC 8.5 mm
Coating uncoated
Tool material HSS E
Standard DIN 1869
Type FS
Tolerance nominal ⌀ h8
Point angle 130 degrees
Helix angle 38 degrees
Shank Plain shank
Number of cutting edges Z 2
Through-coolant no
recommended maximum drilling depth L2 152.3 mm
Flute length Lc 165 mm
Overall length L 240 mm
Shank ⌀ Ds 8.5 mm
Feed f in steel < 750 N/mm2 0.1 mm/rev.
Colour ring without
Type of product Jobber drill

Identification numbers & Classifications

Article number 116250 8,5X240
EAN / GTIN 4062406266028
Manufacturer number 116250 8,5X240

Application Table

Alu plastics
N
55
Aluminium (short chipping)
N
30
Steel < 500 N/mm²
P
32
Steel < 750 N/mm²
P
25
Steel < 900 N/mm²
P
20
Steel < 1100 N/mm²
P
5
INOX < 900 N/mm²
M
8
INOX > 900 N/mm²
M
4
GG(G)
K
20
Oil
 
wet maximum
 

Description

Version:

With precision ground point.
Special 4-chamfer relief ground for very good guidance within the bore. Bright finish flutes, nitrided chamfers.
With point geometry shape C.

Advantage:

Special deep hole drills. For particularly deep or recessed holes. Good chip evacuation due to parabolic flutes, resulting in fewer chip evacuations even in particularly deep holes.

Recommendation:

Maximum drilling depth:
L2 = LC - 1.5 × DC.

Note:

Suitable NC spotting drills No. 112120, 112140 and 112170 with 142° tip angle for enhanced process reliability

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