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Extra Long HSS-G drill Bits
HSS-G SUPER DIN 1869
steel drill bit extra long
Special HSS helical drill bit for extra deep drill holes.
Special helical design for the drill bit's concentricity and dimensional stability
Rapid chip removal through parabolic helix
For a variety of metals up to a strength of 900 N/mm²
Heller tip: Regular ventilation accelerates the drilling process and extends the service life
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