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Extra-long twist drill bit DIN 1869 type FN HSS+TiN ground 4 mm L=220

Extra-long twist drill bit DIN 1869 type FN HSS+TiN ground 4 mm L=220

Extra-long twist drill bit DIN 1869 type FN HSS+TiN ground 4 mm L=220
Item no: 1010422 109 

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Still in stock: 3

Application
Stable special drill bit for drilling extremely deep holes in difficult drilling conditions, e.g. in the case of poor chip removal and, as a result, poor cooling of the drill tip. Suitable for drilling grey cast iron and steels up to a maximum strength of 1000 N/mm². Exception: CrNi steels as well as VA steels and similar materials.

Execution
  • Reinforced core
  • With straight shank
  • Right-cutting
  • Tip angle 130°
  • Cone polished section with point thinning in accordance with DIN 1412 shape A
  • Wide chip grooves with highly rounded back edges
  • HSS/TiN-coated, ground


Brand: HARTNER
Material to be processed: Grey cast iron | Steel
Cutting edge diameter: 4 mm
Length: 220 mm
Chip flute length: 150 mm
Max. drilling depth (D): 10xD
Angle of the tip: 130 Degree
Cutting material: HSS
Surface: TiN
Tool holding device: Cylinder shank
Type: FN
DIN: 1869
Coolant supply: External
Cutting direction: Right-hand cutting
Number of cutting edges: 2 PCS
f steel 700: 0,05 mm/r
Min. f in steel: 0,03 mm/r
Max. f in steel: 0,06 mm/r
Min. f in cast iron: 0,07 mm/r
Max. f in cast iron: 0,07 mm/r

Manufacturer part no.: 84426 4

EAN no.: 4031096143476

Product Datasheet Datasheet cutting values
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