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HSS jobber drill N, uncoated, ⌀ DC h8: 50mm

Article no.: 116340 50

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⌀ DC h8 (mm) Unit price incl. VAT
  • Tool material: HSS
  • Standard: DIN 345
  • Type: N
  • Tolerance nominal ⌀: h8
  • Point angle: 118

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Product details

Technical Data

Nominal ⌀ DC 50 mm
Coating uncoated
Tool material HSS
Standard DIN 345
Type N
Tolerance nominal ⌀ h8
Point angle 118 degrees
Helix angle 20-30 degrees
Shank Morse taper
Number of cutting edges Z 2
Through-coolant no
recommended maximum drilling depth L2 145 mm
Flute length Lc 220 mm
Overall length L 369 mm
Morse taper MT size 4
Feed f in steel < 750 N/mm2 0.32 mm/rev.
Colour ring without
Type of product Jobber drill

Identification numbers & Classifications

Article number 116340 50
EAN / GTIN 4045197031099
Manufacturer number 116340 50

Application Table

Aluminium (short chipping)
N
45
Steel < 500 N/mm²
P
40
Steel < 750 N/mm²
P
30
Steel < 900 N/mm²
P
25
GG(G)
K
25
Oil
 
wet maximum
 

Description

Version:

Special surface treatment, resulting in reduced tendency to edge build-up and improved chip evacuation.
Top quality high performance twist drills.
Cutting edge section ≤ 26.5 mm ⌀ ground from solid, > 26.5 mm ⌀ milled. This ensures high concentricity and pitch accuracy, and precision ground point up to 40 mm ⌀.
With shape A point.

Recommendation:

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

Note:

For suitable reducing adapters for tools with MT shanks see No. 343000-343530.

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HSS jobber drill N, uncoated, ⌀ D<sub>C</sub> h8: 50mm

HSS jobber drill N, uncoated, ⌀ DC h8: 50mm

Nominal ⌀ DC 50 mm 50 mm 50 mm 50 mm
Standard DIN 345 DIN 341 DIN 345 DIN 343
Shank Morse taper Morse taper Morse taper Morse taper
Point angle 118 degrees 118 degrees 118 degrees 120 degrees
Morse taper MT size 4 4 4 4
Feed f in steel < 750 N/mm2 0.32 mm/rev. 0.32 mm/rev. 0.32 mm/rev. 0.41 mm/rev.
recommended maximum drilling depth L2 145 mm 246 mm 145 mm 145 mm

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