Single-lip drill having two longitudinal grooves in the rake face
Assigneebotek Präzisionsbohrtechnik GmbH
InventorsPeter Raber, Jürgen Deeg, Patrick Kammerer, Dennis Köhler
Life of this patent
Estimating the term…
Abstract
The invention relates to single-lip drills in which two longitudinal grooves are formed in the rake face. They are arranged in the longitudinal direction of the tool, spaced apart from one another by a ridge and favor chip breaking.
Claims20
A single-lip drill comprising a drill head, the drill head having an axis of rotation, a drilling diameter and a cutting edge, a rake face being assigned to the cutting edge, longitudinal grooves running parallel to each other being provided in the rake face, and a ridge being provided between the inner longitudinal groove and the outer longitudinal groove, characterized in that the ridge opens out into the cutting tip.
(canceled)
(canceled)
The single-lip drill according to claim 12 or 3, characterized in that the longitudinal grooves are arranged symmetrically or geometrically similar in cross section to the ridge.
Dependencies are inferred from the claim text.