Description

Jobber drill with cyl. shank Design: Sturdy special drill bit, profile-ground, right-hand cutting, with precise point grinding and wide flutes with strongly rounded back edges. Point thinning according to DIN 1412, form A. Angle of rake larger than normal, core thickness considerably thicker than normal and without core gradient. Application: Suitable for drilling extremely deep holes up to 10 x D under difficult conditions such as poor chip evacuation and the resulting inadequate cooling of the drill bit tip. Particularly suitable for extremely deep holes in grey cast iron and steels up to 1000 N/mm² in strength. Exception: CrNi steels, INOX steels. Manufacturer: Einkaufsbüro Deutscher Eisenhändler GmbH, EDE Platz 1, 42389 Wuppertal, DE, +4920260960, webkontakt@ede.de

Specifications

Beschichtung	nitriert
DIN	DIN 1869
Ø h8	4,0 mm
Durchmesser	4 mm
Stähle bis 1000 N/mm²	20
Gesamtlänge	280 mm
Spirallänge	190 mm
Spitzenwinkel	130°
VE	1 Stück
Länge	280 mm