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US 2024/0269755 A1Published application
Single-lip drill with interchangeable guide bars for small bore diameters
Assigneebotek Praezisionsbohrtechnik GmbH
InventorsJuergen DEEG, Patrick KAMMERER, Juergen RUOF, Bernd KIRSCHNER
Life of this patent
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Abstract
A single-lip drill with interchangeable guide bars is provided, which is particularly suitable for making small bores. Formed in the single-lip drill is a cooling lubricant channel with an enlarged diameter.
Claims17
A single-lip drill comprising:
- a drill head that comprises two interchangeable guide bars, a flute, and a cooling lubricant channel;
- and
- two indentations formed in the drill head to mount the two interchangeable guide bars, the two indentations having two substantially parallel side faces and a base area,
- wherein the cooling lubricant channel ends in a front side or tip of the drill head, and
- wherein a width of the base area is at least 30% smaller than a distance of the side faces.
2 more elements
A single-lip drill comprising:
- a drill head;
- two interchangeable guide bars;
- a flute;
- a cooling lubricant channel;
- and
- two indentations arranged in the drill head for mounting the two interchangeable guide bars, the two indentations having two substantially parallel side faces and a base area,
- wherein the cooling lubricant channel ends in a tip of the drill head, and
- wherein a width of the side faces is at least 30% smaller than a depth of the indentation.
5 more elements
A guide bar for a single-lip drill, the guide bar comprising:
- a guide surface;
- two lateral boundary surfaces;
- and
- at least one support surface,
- wherein the lateral boundary surfaces are substantially parallel to each other,
- wherein the lateral boundary surfaces and the support surface are arranged at right angles to each other,
- wherein a width of the support surface is at least 30% smaller than a distance of the boundary surfaces or a width of the boundary surfaces is at least 30% smaller than a thickness of the guide bar.
4 more elements
Dependencies are inferred from the claim text.