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Short step drill bit type N cyl. HSS ground M8 180° 9 x 15.0 mm

Short step drill bit type N cyl. HSS ground M8 180° 9 x 15.0 mm

Short step drill bit type N cyl. HSS ground M8 180° 9 x 15.0 mm
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Item no: 1010868 105 

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Available in 6-8 working days.

Application
For steel up to approx. 900 N/mm², cast iron, aluminium alloys, bronze, brass. For through screw holes in acc. with DIN EN 20273 and screw head countersinking shape H, J and K part 2 medium. Cheese head screws in acc. with DIN EN ISO 4762, DIN EN ISO 1207, DIN 6912, DIN 7513, DIN 7984.

Execution
  • With straight shank
  • Countersink angle 180°
  • 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: M8
Pilot hole diameter (d1): 9,0 mm
Spot-facer diameter (d2): 15,0 mm
Pilot hole length (l3): 19,0 mm
Chip flute length (l2): 56 mm
Length (l1): 111 mm
Shank diameter: 15,0 mm
f steel 700: 0,20 mm/r
Coolant supply: External
Countersink angle: 180 Degree
Number of cutting edges: 2
Max. f in cast iron: 0,18 mm/r
Max. f in non-ferrous metals: 0,22 mm/r
Max. f in steel: 0,20 mm/r
Min. f in cast iron: 0,18 mm/r
Min. f in non-ferrous metals: 0,17 mm/r
Min. f in steel: 0,20 mm/r
Min./max. f in cast iron: 0.18-0.18 mm/U
Min./max. f in non-ferrous metals: 0.17-0.22 mm/U
Min./max. f in steel: 0.20-0.20 mm/U
Shank style: Cylindrical
Suitable for thread: M8

Manufacturer part no.: 85918 15

EAN no.: 4031096111390

Product Datasheet Datasheet cutting values
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