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Extra-long twist drill bit DIN 1870 type FN HSS ground 20 x 490 mm

Extra-long twist drill bit DIN 1870 type FN HSS ground 20 x 490 mm

Extra-long twist drill bit DIN 1870 type FN HSS ground 20 x 490 mm
Item no: 1010621 126 

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Available in 6-8 working days.

Application
For materials that can be machined normally such as steel and cast steel, alloyed and unalloyed, up to approx. 900 N/mm² strength, grey cast iron, malleable iron, spheroidal graphite iron, sintered iron, nickel silver, graphite. For short-chipping materials such as aluminium alloys, high-pressure die casting, bronze, brass etc. For bore holes up to approx. 10xD, without chip removal.

Execution
  • Reinforced core
  • Flat flute profile
  • Cone polished section
  • Tip angle 130°
  • With point thinning
  • Up to dia. 16 mm nitrated chamfers and plain chip flutes. Also specially heat treated for increased wear resistance and reduced build-up of material deposits
  • HSS, ground


Brand: HARTNER
Material to be processed: Steel
Cutting edge diameter: 20 mm
Length: 490 mm
Chip flute length: 325 mm
Angle of the tip: 130 Degree
Cutting material: HSS
Surface: Vaporised
Morse taper size: MK 2
Type: FN
DIN: 1870
f steel 700: 0,28 mm/r
Coolant supply: External
Number of cutting edges: 1 PCS
Max. f in cast iron: 0,21 mm/r
Max. f in non-ferrous metals: 0,25 mm/r
Max. f in steel: 0,28 mm/r
Min. f in cast iron: 0,21 mm/r
Min. f in non-ferrous metals: 0,20 mm/r
Min. f in steel: 0,28 mm/r
Shank style: Morse taper

Manufacturer part no.: 82440 20

EAN no.: 4031096100134

Product Datasheet Datasheet cutting values
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