A cutting wheel includes a body having a bond material. The bond material comprises at least about 31 vol % of a total volume of the body. Additionally, the body includes abrasive particles contained within the bond material. The abrasive particles include a first type of abrasive particle including black alumina with at least about 10 vol % of a total volume of the abrasive particles including black alumina. In some instances the cutting wheel can include a chop saw, while in other situations, the cutting wheel can include a cut-off wheel.

A cutting tool includes a plurality of cut-off wheels which are arranged alongside one another coaxially along a common rotation axis. Each of the plurality of cut off wheels comprises a blade body which comprises a plurality of cutting segments distributed around a circumference of the blade body, each blade body defining a central cutting plane. Some of the plurality of cutting segments are configured to protrude axially out of the central cutting plane. The plurality of cutting segments are arranged so that a segment gap exists between two cutting segments arranged adjacent to one another in a direction of rotation. At least a first of the plurality of cutting segments arranged in a first axial position is configured to be larger than a second of the plurality of cutting segments arranged in a second axial position which differs from the first axial position.

A cutting wheel includes a body having a bond material. The bond material comprises at least about 31 vol % of a total volume of the body. Additionally, the body includes abrasive particles contained within the bond material. The abrasive particles include a first type of abrasive particle including black alumina with at least about 10 vol % of a total volume of the abrasive particles including black alumina. In some instances the cutting wheel can include a chop saw, while in other situations, the cutting wheel can include a cut-off wheel.

A grinding tool, such as a cutting disc, includes a matrix, in particular a sintered metal matrix, and diamonds embedded in the matrix. At least the majority of the diamonds are each assigned at least one wear-promoting particle. The at least one wear-promoting particle is likewise embedded in the matrix.

A grinding tool, such as a cutting disc, includes a matrix, in particular a sintered metal matrix, and diamonds embedded in the matrix. At least the majority of the diamonds are each assigned at least one wear-promoting particle and/or at least one wear-inhibiting particle. The at least one wear-promoting particle and the at least one wear-inhibiting particle are likewise embedded in the matrix.

The disclosed technology includes a cutting tool comprising segments arranged around a periphery of a cutting tool. Each segment, of the plurality of segments comprising a first portion comprising a first material having a first hardness, a second portion comprising a second material having a second hardness, the second hardness being less than the first hardness, and a transition region. The transition region can include at least part of the first material and at least part of the second material. The transition region can have an overall third hardness that is less than the first hardness and greater than the second hardness. A first segment and a second segment of the plurality of segments can be attached to the periphery of the cutting tool such that at least the first portion of the first segment is aligned in a cutting direction with the second portion of the second segment.

A grinding tool, such as a cutting disc, includes a matrix, in particular a sintered metal matrix, and diamonds embedded in the matrix. At least the majority of the diamonds are each assigned at least one wear-promoting particle and/or at least one wear-inhibiting particle. The at least one wear-promoting particle and the at least one wear-inhibiting particle are likewise embedded in the matrix.

A cutting wheel includes a core wheel made of a metallic material and cutting segments disposed at the circumference of the core wheel and each having a sintered metal matrix in which diamonds are embedded. Additionally, aluminum oxide particles are embedded in the sintered metal matrix of each of the cutting segments. The aluminum oxide particles are shaped in such a manner that they each have a surface area/volume (A/V) ratio greater than 5.