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Drill bit 11.8 long for metal - 195 mm / 128 mm HSS DIN 340 NWKb
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  • Drill bit 11.8 long for metal - 195 mm / 128 mm HSS DIN 340 NWKb
  • Drill bit 11.8 long for metal - 195 mm / 128 mm HSS DIN 340 NWKb - nr. 1

Drill 11.8 long 195/128 HSS DIN 340

Artykuły Techniczne Artykuły Techniczne
0252
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Description

Technical data of long drill fi 11,8

Technical data
Working diameter of drill d fi 11,8 mm
Overall length l1 195 mm
Length of working part l2 128 mm

Cutting parameters of long drill bit fi 11,8 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 0,08 347 28
K Cast iron 10-15 0,08 290 23
Copper and alloys 12-25 0,1 347 35

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Cutting parameters calculator

Long drill bit for metal fi 11,8

Professional long drill bit for metal 11,8 twist, with a long cylindrical shank of 11,8 mm. It is made of modern high-speed steel HSS (High Speed Steel) according to the dimensional standard NWKb, DIN 340. Long drills for metal 11,8 are distinguished by their high cutting performance and increased durability for harsh working conditions. Their blades are resistant to cracking, chipping, breaking and other damage, which affects the extended period of their use. On the other hand, high drilling efficiency affects the possibility of reducing machining time and, as a result, more rational use of owned workstations. The drills have 2 central blades, a tip angle of 118 degrees, strong ground edges and special chip grooves for removing chips from the hole. They are suitable for drilling through-holes and blind holes in materials classified as P1.2 - P1.3. Drills recommended for classic drilling machines, lathes and milling machines as well as CNC - computer numerical control machine tools.

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Drill 11.8 long 195/128 HSS DIN 340

Drill 11.8 long 195/128 HSS DIN 340

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