Abstract: A grinding tool, in particular a diamond cup wheel, includes at least one main body, which has at least one connection region and at least one contact region, the contact region at least substantially completely surrounding the connection region when viewed in at least one main extension plane of the main body. The grinding tool further includes a plurality of grinding elements, which are arranged on the main body. The main body delimits a plurality of suction openings which, when viewed along a circumferential direction of the main body, are each arranged between at least two grinding elements of the plurality of grinding elements.

Abstract: A cut-off wheel for machine tools, in particular for handheld power grinders, has a blade body (8), on the outer edge of which at least two cutting segments (9) are mounted. Seen in the circumferential direction, the outer edge of the blade body is subdivided into identical segment receiving portions (10), each of which is assigned a cutting segment.

Abstract: The invention describes a cutting disc (100) comprising a circular-disc-shaped body (10) with a central hole (11) for accommodating a drive spindle, an annular cutting region (13), containing abrasive, at the circumference (12) of the circular-disc-shaped body (10) and a centred plastic damping element (20) with a central hole (21), wherein the damping element (20) is arranged on at least one first flat side (15) of the circular-disc-shaped body (10).

Abstract: The ceramic/metal composite material is comprised of a ceramic phase with particles of alumina or of a solid solution based on alumina and a refractory phase including titanium nitride and/or carbonitride and a metallic matrix based on Ni, Co, Fe. The interface between the particles of alumina or the solid solution of alumina and the metallic matrix is rich in nitrogen and in titanium or in compounds thereof.