Abstract: An indexable guide plate and an associated drilling tool are described in which the indexable guide plates have very small dimensions but, despite these small dimensions, have a large number of guide surfaces. As a result, the indexable guide plate according to the invention can be used for a long time, even with drilling tools having a small drilling diameter.

Abstract: The invention relates to a drill head for chambering a blind hole with a flat base, and a method directed thereto.

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.

Abstract: The invention relates to a single-lip drill and a double-lip drill having a plurality of chip-forming devices or depressions in the rake face which are arranged in succession and at a distance from one another. As soon as a cutting edge and/or the associated chip-forming device or the associated depression is worn, the deep hole drill according to the invention can be reground using simple means.

Abstract: The invention relates to a drill head for chambering non-cylindrical, rotationally symmetrical holes. This drill head is characterized in that, starting from a diameter of a guide hole, it can cut a very large chamber out of a workpiece. In addition, the drill head has a simple design and is very robust and tight, so that high cutting capacities can be reliably achieved.

Abstract: The invention relates to a single-lip drill with an inner and an outer rake face. Very good hole straightness deviation values and endurance are obtained with the ground face according to the invention.

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.

Abstract: An indexable guide plate and an associated drilling tool are described in which the indexable guide plates have very small dimensions but, despite these small dimensions, have a large number of guide surfaces. As a result, the indexable guide plate according to the invention can be used for a long time, even with drilling tools having a small drilling diameter.

Abstract: The invention relates to a drill head for chambering a blind hole with a flat base, and a method directed thereto.

Abstract: The invention relates to a drill head for chambering non-cylindrical, rotationally symmetrical holes. This drill head is characterized in that, starting from a diameter of a guide hole, it can cut a very large chamber out of a workpiece. In addition, the drill head has a simple design and is very robust and tight, so that high cutting capacities can be reliably achieved.

Abstract: The invention relates to single-lip drills and double-lip drills, in which one or more depressions are formed in the rake face. The depressions according to the invention are arranged in the longitudinal direction of the tool at a distance from the cutting edge and have a positive influence on chip breaking.

Abstract: The invention relates to a single-lip drill and a double-lip drill having a plurality of chip-forming devices or depressions in the rake face which are arranged in succession and at a distance from one another. As soon as a cutting edge and/or the associated chip-forming device or the associated depression is worn, the deep hole drill according to the invention can be reground using simple means.

Abstract: The invention relates to a single-lip drill with an inner and an outer rake face. Very good hole straightness deviation values and endurance are obtained with the ground face according to the invention.

Abstract: Described are a drilling tool and a replaceable cutting disk which allow the replaceable cutting disk to be positioned with high accuracy and in a form-locking manner in the drilling tool. At the same time, a cutting disk can be replaced more easily.

Abstract: The invention relates to a single-lip deep hole drill comprising a drill head, wherein the drill head has a drill diameter, a blade and a channel for chip removal, wherein the blade extends outwards from a rotational axis up to the perimeter of the drill head, wherein the blade has a cutting surface and wherein the channel is bordered by a chip forming surface, wherein the chip forming surface has two sections such that a first section of the chip forming surface extends in the radial direction from the rotational axis up to a first diameter, a second section of the chip forming surface connects to the first section in the radial direction, the first section is positioned above the cutting surface, and the second section is positioned nearer to the cutting surface than the first section.

Abstract: The invention relates to a single-lip deep hole drill comprising a drill head, wherein the drill head has a drill diameter, a blade and a channel for chip removal, wherein the blade extends outwards from a rotational axis (23) up to the perimeter of the drill head, wherein the blade has a cutting surface (33) and wherein the channel is bordered by a chip forming surface (15), wherein the chip forming surface (15) has two sections (19, 21) such that a first section (19) of the chip forming surface (15) extends in the radial direction from the rotational axis (23) up to a first diameter, a second section (21) of the chip forming surface (15) connects to the first section (19) in the radial direction, the first section (19) is positioned above the cutting surface (33), and the second section (21) is positioned nearer to the cutting surface (33) than the first section (19).

Abstract: A method for reloading a single-flute drill comprising a shaft made of a hard metal and a drill head that is connected to the shaft and is made of a hard metal, is characterized by the following steps: removing a worn drill head from the shaft; integrally bonding a new drill head to the shaft.

Abstract: A drill head for deep-hole drilling includes cutting blade tips brazed to cutting chip discharge ports opened on a head distal end surface, guide pads mounted on a plurality of positions of the circumferential surface at the head distal end side, and a hollow inside portion made into a cutting chip discharge passage communicating with the cutting chip discharge ports. A guide pad portion having an arc surf ace that slide-contacts with the inner circumference of a cutting hole is formed on the outer end surface of the circumferential portion cutting blade tip.

Abstract: A single-lip drill including at least one cutting edge on a drill head has a face which is concave along at least 75 percent of the width thereof and substantially along the entire length thereof, all the way to, and inclusive of, the cutting edge.

Abstract: A drill head for deep-hole drilling includes cutting blade tips brazed to cutting chip discharge ports opened on a head distal end surface, guide pads mounted on a plurality of positions of the circumferential surface at the head distal end side, and a hollow inside portion made into a cutting chip discharge passage communicating with the cutting chip discharge ports. A guide pad portion having an arc surface that slide-contacts with the inner circumference of a cutting hole is formed on the outer end surface of the circumferential portion cutting blade tip.