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Drill bit 7.3 long for metal - 156 mm / 102 mm HSS DIN 340 NWKb
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  • Drill bit 7.3 long for metal - 156 mm / 102 mm HSS DIN 340 NWKb
  • Drill bit 7.3 long for metal - 156 mm / 102 mm HSS DIN 340 NWKb - nr. 1

Drill 7.3 long 156/102 HSS DIN 340

Artykuły Techniczne Artykuły Techniczne
0206
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Net price: €1.45

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Description

Technical data of long drill fi 7.3

Technical data
Working diameter of drill d fi 7,3 mm
Overall length l1 156 mm
Length of working part l2 102 mm

Cutting parameters of long drill bit fi 7.3 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 0,06 546 33
K Cast iron 10-15 0,06 455 27
Copper and alloys 12-25 0,08 546 44

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Cutting parameters calculator

Long drill bit for metal fi 7,3

Ground long drill bit for metal fi 7,3 with cylindrical shank intended for machining of very hard materials classified in the category marked with the symbol P1.2 - P1.3. These are mainly unalloyed steels (carbon), metals, copper and aluminum alloys that give short chips, as well as non-ferrous metals and thermoplastics. Long drills for metal fi 7,3 offered in our store comply with the dimensional standard NWKb, DIN 340, have 2 central blades, strong ground cutting edges, a tip angle of 118 degrees and special grooves for quick removal of chips from the drilled hole. Drills of this type are characterized by very high cutting efficiency, which reduces working time and makes better use of the processing stations available. In addition, the drills allow very precise drilling (holes with low roughness). Also noteworthy is the high strength of the drill blades to withstand harsh working conditions and resistance to any mechanical damage caused during the processing of hard materials at high speed, during which a high temperature is generated (up to 600 degrees C). The drills are suitable for conventional drilling machines, milling machines, lathes and modern CNC-controlled automatic machining machines.

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Drill 7.3 long 156/102 HSS DIN 340

Drill 7.3 long 156/102 HSS DIN 340

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