Product specification

Extra long taper shank drill HSS, DIN 341 RN, DIN 1870 RN, 20,5x490/325 mm

Code: 038000179
Supplier code: A992053F000S
Category: Tools for hole-machining » 2 » Extra Long Taper Shank Drills » ZV 5001
more info
Ø D20,5 mm
L490 mm
l325 mm
Weight0,617 kg
Helix Angleλ = 25°÷30°
Point angleε = 118°
MaterialHSS - high-speed steel
Manufacturing ModeF - milled
Usage
Extra long drills are recommended for deep-hole drilling by means of jig bushes of parts made of unalloyed or alloyed steel, cast steel up to 900 N/mm2, grey-, malleable- or nodular cast iron, sintered steel etc. It is necessary to prevent from flute-stopping by frequent withdrawing the drill. It is necessary to reduce the recommended cutting conditions regarding to the insufficient supply of the cutting fluid.
Surface Treatmentwithout treatment
Grinding Mode
C - conical lip relief, split point - form C
MORSE2
NotePROFI tools

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