Drilling tool, in particular for metallic materials
OwnerPeter Koptoninventor
Life of this patent
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Abstract
The invention relates to a drilling tool, in particular for metallic materials, having a clamping shaft and an essentially cylindrical drill body, between whose face side and the clamping shaft at least one groove-shaped chip space extends which is bordered by the side walls, of which one side wall on the face side of the drill body bears a cutting element. The side wall which bears the cutting element has a web which is drawn up from the side wall in the peripheral direction and which extends in the longitudinal direction of the drill.
Claims30
A drilling tool, in particular for metallic materials, having a clamping shaft and an essentially cylindrical drill body, between whose face side and the clamping shaft at least one groove-shaped chip space extends which is bordered by the side walls, of which one side wall on the face side of the drill body bears a cutting element, wherein the side wall which bears the cutting element has a web which is drawn up from the side wall in the peripheral direction and which extends in the longitudinal direction of the drill.
A drilling tool comprising:
- a shaft rotatable about an axis thereof;
- and
- at least one cutting bit mounted on an end of said shaft having a leading surface relative to a direction of rotation of said shaft, disposed in a plane disposed radially relative to said axis;
- wherein said shaft includes a passageway provided with an inlet disposed adjacent said cutting bit, an outlet spaced from said inlet and at least a portion of a side wall being curved in a plane disposed perpendicular to said axis.
Dependencies are inferred from the claim text.