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Short step drill bit type N cyl. HSS, ground M3 90° 2.5 x 3.4 mm

Short step drill bit type N cyl. HSS, ground M3 90° 2.5 x 3.4 mm

Short step drill bit type N cyl. HSS, ground M3 90° 2.5 x 3.4 mm
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Item no: 1010866 101 

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Still in stock: 9

Application
For steel up to approx. 900 N/mm², cast iron, aluminium alloys, bronze, brass. For thread core hole bores in acc. with DIN 336 part 1. Free countersinks for through-bores in accordance with DIN EN 20273 medium.

Execution
  • With straight shank
  • Countersink angle 90°
  • Cone polished section
  • Thinned chisel edge


Brand: HARTNER
Material to be processed: Steel
Cutting material: HSS
Surface: Uncoated
Angle of the tip: 118 Degree
Tool holding device: Cylinder shank
Suitable for screw thread: M3
Pilot hole diameter (d1): 2,5 mm
Spot-facer diameter (d2): 3,4 mm
Pilot hole length (l3): 8,8 mm
Chip flute length (l2): 20 mm
Length (l1): 52 mm
Shank diameter: 3,4 mm
f steel 700: 0,08 mm/r
Coolant supply: External
Countersink angle: 90 Degree
Number of cutting edges: 2
Max. f in cast iron: 0,10 mm/r
Max. f in non-ferrous metals: 0,12 mm/r
Max. f in steel: 0,08 mm/r
Min. f in cast iron: 0,10 mm/r
Min. f in non-ferrous metals: 0,05 mm/r
Min. f in steel: 0,08 mm/r
Min./max. f in cast iron: 0.10-0.10 mm/U
Min./max. f in non-ferrous metals: 0.05-0.12 mm/U
Min./max. f in steel: 0.08-0.08 mm/U
Shank style: Cylindrical

Manufacturer part no.: 85920 3,4

EAN no.: 4031096111413

Product Datasheet Datasheet cutting values
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