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Drill bit 15 long for metal - 220 mm / 144 mm HSS DIN 340 NWKb
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  • Drill bit 15 long for metal - 220 mm / 144 mm HSS DIN 340 NWKb
  • Drill bit 15 long for metal - 220 mm / 144 mm HSS DIN 340 NWKb - nr. 1

Drill 15 long 220/144 HSS DIN 340

Artykuły Techniczne Artykuły Techniczne
0262
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Description

Technical data of long drill fi 15

Technical data
Drill working diameter d fi 15 mm
Overall length l1 220 mm
Length of working part l2 144 mm

Cutting parameters of long drill bit fi 15 mm HSS NWKb

ISO symbolMaterialCutting speed Vc [m/min]Feed per revolution f [mm]Revolutions n [obr/min]Total feed rate [mm/min]
P Steel 12-21 0,12 255 31
K Cast iron 10-15 0,12 212 25
Copper and alloys 12-25 0,16 255 41

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Cutting parameters calculator

Long drill bit for metal fi 15

Professional long drill bit for metal fi 15 cylindrical 15 mm for drilling through-holes and blind holes in hard materials classified as P1.2 - P1.3. These include carbon steels (unalloyed), metals, sheets, copper and aluminum alloys giving short chips and even thermoplastics. Long metal drills fi 15.0 of this type have a tip angle of 118 degrees, 2 central blades, strong cutting edges and special chip grooves. Thanks to these geometric features, the drills enable aggressive cutting, resistance to impact and lateral forces, as well as rapid discharge of chips up the hole. The drills are manufactured in accordance with NWKb, DIN 340 from special HSS high-speed steel. Thanks to it, the drills are resistant to harsh cutting conditions, insensitive to high temperatures (up to 600 degrees C) and allow drilling at increased speeds. Their blades are resistant to mechanical damage, which extends their service life.

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Drill 15 long 220/144 HSS DIN 340

Drill 15 long 220/144 HSS DIN 340

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